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September 1997
- 217 participants
- 221 discussions
20 Sep '97
Kent,
As a former network design guy who's done traffic engineering and
design (and redesign) on many networks (Internet and otherwise), I
disagree that traffic engineering doesn't work for the Internet.
I've seen many people go with the "throw bandwidth at the problem" as
a cure all. While it tends to work, it tends to be the most expensive
method of solving the problem.
Doing traffic engineering right is hard. The telcos have it down pat
for their voice networks, and telco-based ISPs often have applied
this design expertise to their ISP network. Having a person do
traffic engineering can save the ISP big bucks.
The traffic engineering techniques I'm talking can't handle wildly
dynamic situations. For example, a news event like Princess Di's
death greatly increases traffic to/from England which plays temporary
havoc with forecasted traffic projections. However, outside of these
anomalies, traffic projections work pretty well.
I've outlined a basic technique below which works for many types of
networks, and has some ISP specific steps. The key to this analysis is
that it takes into account the underlying traffic flows and then
determines the appropriate physical backbone topology, or the changes to
be made to an existing topology. This is directly in contrast to the
"throw bandwidth at the problem" case that patches a backbone topology
which might be sub-optimal in the first place.
Here's the overall outline:
1. Divide your network into a small number of geographic areas
(between five and ten). Each geographic area you choose probably
has a large city that serves as a major traffic source for that
area. These cities are usually the natural cities for backbone
connectivity.
Create an NxN matrix, where N is the total number of areas
in your network. Each cell in the matrix will represent the total
traffic demand between each source/destination geographic area.
There are several factors which effect this matrix, each of which
will be discussed below.
1. The locality of traffic.
2. The typical utilization of customers.
3. The entry/exit points of traffic from your network.
2. Identify which % of traffic, if any, has regional locality.
For pure Internet traffic, the probability that the source and
destinatino of traffic are within the same metropolitan area
tends to be low (10% or lower for metros within the US).
However, there are exceptions. Telecommuting applications
tend to have very high locality. People close to work dial
into work through an ISP, so both the source and destination
of traffic tends to stay local (70% or higher).
Places like the Bay Area in California also tend to have higher
traffic locality. This is because the Bay Area has lots of
Internet users (which tend to be traffic sinks), and lots of
web sites (which tend to be traffic sources).
ISPs outside of the US tend to have a higher percentage of
traffic staying within the country, especially non-english
speaking countries.
3. Measure/estimate the typical utilization of customers.
Utilization needs to be measured/estimated in both send
and receive directions. Dial-up users typically receive
almost seven times as much as they send. Corporate customers
not doing telecommuting applications tend to receive about
four times as much as they send (less because corporations
have web sites that others access). Web server farms have
the opposite characteristics of dial-up users.
Percentage utilization tends to increase with bandwidth.
In the U.S., a T1 customer connection typically has a
peak recieve utilization of 20% or less. However, a DS3
customer can easily have a receive utilization of 50% or
more. Simple explanation is that someone paying big bucks
for a DS3 wants to make sure it is justified.
So, take the total number of users in each area, the
connection speeds and customer types, multiply by the
appropriate factors, and you get the total demand you are
trying to serve out of each area.
Take this traffic demand, and multiply it by the non-local
traffic. This represents the total traffic that you need
to get either in/out of the network, or in/out of this
particular part of your network.
4. Determine the entry/exit points for traffic with your network,
and its effect upon the traffic matrix.
How do you setup your routing policies? Many ISPs use nearest
exit. If the nearest exit is in the same geographic area, the
traffic sent by your customers does not affect any other part
of the overall traffic matrix. If the nearest exit is not
within the same geographic area, determine the area where this
traffic will be sent. Enter this value in the appropriate
source/destination box of the traffic matrix.
It gets harder when peering with many other ISPs, some of whom
you connect to in the same area, and others in remote areas.
In this case, determine which percentage of the traffic goes
into each particular region, and
The main traffic sources into your network (excluding your
customers) are your peering points (both public and private).
The amount of traffic from each peering point is measurable.
You can generally estimate that this traffic is to be
distributed proportional to the overall traffic demand in each
geographic area.
This is a significant amount of matrix math, but the overall
concept is simple. Determine the overall flow between one
part of your network to another.
5. With me so far? Good, now it's time to design your backbone to
handle your demands. You can use dedicated lines or layer two
services such as Frame Relay or ATM.
The simplicity of using Frame Relay or ATM is that the circuits
you need between each geographic area has been defined by your traffic
matrix. This is part of the appeal of using public L2 services for a
backbone.
Designing your own backbone is a bit harder. The actual topology
tends to be straightforward--you need to connect up the major cities
in each of the geographic areas. For five areas, a simple ring
suffices. For up to 10 areas, this tends to be rings bisected once or
twice.
The real work in designing your own backbone is in satisfying the
traffic demands going across your network. Remember that geographic
areas in the center of your network have to carry the traffic demands
going across your network. This imposes a heavier burden in the
center of the network than the traffic matrix would indicate. You
also have to worry about resiliency, having sufficient bandwidth
when the backhoes go fiber hunting, etc.
6. Design the network within each geographic areas.
The steps for designing the network within each geographic area tend
to be similar to that of designing the overall network. Breaking the
overall design process into a regional network and backbone network
makes the problem more tractable.
7. Measure data from a real network.
This is really important. You've made lots of assumptions. Regularly
check the overall traffic to see if it matches the assumptions.
Refine the traffic matrix to see if it still represents reality.
Create trendlines which show the overall traffic changes to/from each
area, and project these trendlines into the future. You will tend to
have pretty good certainty about 4 months into the future, with the
value of the information decaying after that.
Use this data to determine where to add additional peering points.
Estimate what impact this would have on the traffic matrix.
8. Factor the measured and projected data into the next network backbone
design.
This next backbone design gives you the optimum backbone given the
underlying flows in your network. See what changes you need to
make to your backbone to get to this new optimum backbone, and
order the circuits.
Phew! Like I said earlier, it is hard to do right, and I've left out
quite a few details in the above outline. But having been there, done
that, (quite a few times) I can say it really works. And it saves
ISPs money!
Question for NANOG members. How important is traffic engineering
given that it is fairly hard to do properly and you folks have enough
other things to think about?
Prabhu Kavi
IP Business Marketing Manager
Ascend Communications
prabhu.kavi(a)ascend.com
______________________________ Reply Separator _________________________________
Subject: Chanukah [was Re: Hezbollah]
Author: "Kent W. England" <kwe(a)geo.net> at smtplink
Date: 9/16/97 2:09 PM
At 05:03 PM 14-09-97 -0400, Dorian R. Kim wrote:
>... One of the
>things that needs to be engineered into building and maintaining
>national/international backbones is traffic accounting to an arbitrary
>granularity that paves the way for better traffic engineering and
>bandwidth projections. There are already ample tools to to per-prefix
>matrix of traffic right now. Tying this in with good sales projections
>will alleviate much of the last minute fire fighting.
>
>This will most likely never be 100% accurate and precise, but there is
>no reason why we can't get a better handle on bandwidth forecasts. (say to
>95% percentile)
Dorian;
I don't want to throw cold water on the value of planning and foresight,
but in terms of predicting traffic patterns it has never worked on the
Internet. It sounds good and that was the argument that all the mainframe
networkers made to us early Internet networkers -- Why can't you tell me
upfront what your bandwidth requirements are going to be? Don't you know
exactly how many terminals you have and where they are and what application
keystrokes are going to be pressed at any given time? How else can you
guarantee response time in your network? This Internet stuff is stupid.
It'll never work.
Somehow with the way that HTTP/HTML caught fire and Internet-CB (aka
VocalTec and CUSeeMe) took off, I would be loath to think I could project
my backbone needs with any reliability based on *historical* projections.
>
>Furthermore, with the deployment of WDM and Internet core devices moving
>closer to the transmission gear, if you have access to fiber, getting more
>bandwidth may become as straightforward as using an additional wavelength
>on the ADM that your router's plugged into.
>
>-dorian
>
>
>
This I like a lot better as a design technique. Throwing more bandwidth at
the problem almost always works (unless the transport protocol is broken).
Like Peter Kline said, Turn up the speed dial upon onset of congestion.
Simple. Effective.
Then again, creating a data architecture for the web (a problem that has
been recognized, but not addressed in the last five years) would eliminate
much of the backbone bandwidth demand. What would happen if -- presto -- a
data architecture for the web showed up one day? A lot of backbone
bandwidth would become surplus and a lot more edge bandwidth would be
needed ASAP. What does that do to historical projections?
--Kent
19
29
I'm trying to understand what all the implications of running BGP4 on
a network with a prefix longer than 19 bits. Here are some of the points
I am thinking about.
<flameshields>
If I go ahead and announce a /20 via two backbones, one of which is
the provider of the address space, then there will be redundant routes
for this space as the backbone provider will be announcing the /19
(or shorter) block themselves.
If I do this, it adds to the routing table glut, among other things.
The advantage gained is questionable. If my link to the provider that
the space comes from goes down, they are still announcing and I'll only
be able to reach where my path via the alternate provider is shorter
than the path to the down provider itself.
OTOH
If the provider were to be convinced to stop announcing for my /20,
then I'm going to get filtered at Sprint and AGIS and whoever else
is doing this and there won't be any /19 announcement that I can use
a default path on.
But the real catch here is that for the provider to stop announcing
my /20 they have to split their /19 into two /20's. And if that was
really a /18 that means they will be announcing a /19 and a /20 where
before only a /18. This gets worse the larger their block was.
Even worse than that, by doing this, they now have a /20 (the other
half of the /19 my /20 is in) with other customers who will now also
be filtered out at Sprint and AGIS and whoever else. While it can be
OK to me if I want to give up that reachability, this is also imposing
this on the other customer(s) in the other /20. So that provider is
not even likely to do that.
So, should I add to the glut of routes or should I add to the glut of
routes?
This needs to be simpler.
</flameshields>
--
Phil Howard +-------------------------------------------------------------+
KA9WGN | House committee changes freedom bill to privacy invasion !! |
phil at | more info: http://www.news.com/News/Item/0,4,14180,00.html |
milepost.com +-------------------------------------------------------------+
3
4
If all the customers on a multi-billion dollar network could not reach my
network I would think about paying a different upstream provider to peer
with me. I announce a /19 and a /22 to NetRail and UUnet, and they both
do an excellent job of getting Sprint's customers routed to my network.
Marcus R. Williams, Jr.
security(a)tomco.net
ISP Programmer / Engineer
On Fri, 19 Sep 1997, Brian Horvitz wrote:
> Date: Fri, 19 Sep 1997 10:54:05 -0400
> From: Brian Horvitz <horvitz(a)nsa.shore.net>
> To: Security Administrator <security(a)tomco.net>
> Subject: Re: BGP4 on a /20
>
> Because if all the customers on a multi-billion dollar network can't get to
> him it's not real good.
>
> Brian
>
> At 10:32 AM 9/19/97 -0400, you wrote:
> >Why should you concern yourself with the problems of a multi-billion
> >dollar company like Sprint?
> >
> >Marcus R. Williams, Jr.
> >security(a)tomco.net
> >ISP Programmer / Engineer
> >
> >On Thu, 18 Sep 1997, Phil Howard wrote:
> >
> >> Date: Thu, 18 Sep 1997 18:22:19 -0500
> >> From: Phil Howard <phil(a)charon.milepost.com>
> >> To: nanog(a)merit.edu
> >> Subject: BGP4 on a /20
> >>
> >> I'm trying to understand what all the implications of running BGP4 on
> >> a network with a prefix longer than 19 bits. Here are some of the points
> >> I am thinking about.
> >>
> >> <flameshields>
> >>
> >> If I go ahead and announce a /20 via two backbones, one of which is
> >> the provider of the address space, then there will be redundant routes
> >> for this space as the backbone provider will be announcing the /19
> >> (or shorter) block themselves.
> >>
> >> If I do this, it adds to the routing table glut, among other things.
> >> The advantage gained is questionable. If my link to the provider that
> >> the space comes from goes down, they are still announcing and I'll only
> >> be able to reach where my path via the alternate provider is shorter
> >> than the path to the down provider itself.
> >>
> >> OTOH
> >>
> >> If the provider were to be convinced to stop announcing for my /20,
> >> then I'm going to get filtered at Sprint and AGIS and whoever else
> >> is doing this and there won't be any /19 announcement that I can use
> >> a default path on.
> >>
> >> But the real catch here is that for the provider to stop announcing
> >> my /20 they have to split their /19 into two /20's. And if that was
> >> really a /18 that means they will be announcing a /19 and a /20 where
> >> before only a /18. This gets worse the larger their block was.
> >>
> >> Even worse than that, by doing this, they now have a /20 (the other
> >> half of the /19 my /20 is in) with other customers who will now also
> >> be filtered out at Sprint and AGIS and whoever else. While it can be
> >> OK to me if I want to give up that reachability, this is also imposing
> >> this on the other customer(s) in the other /20. So that provider is
> >> not even likely to do that.
> >>
> >> So, should I add to the glut of routes or should I add to the glut of
> >> routes?
> >>
> >> This needs to be simpler.
> >>
> >> </flameshields>
> >>
> >> --
> >> Phil Howard
> +-------------------------------------------------------------+
> >> KA9WGN | House committee changes freedom bill to privacy invasion
> !! |
> >> phil at | more info:
> http://www.news.com/News/Item/0,4,14180,00.html |
> >> milepost.com
> +-------------------------------------------------------------+
> >>
> >
> >
>
2
1
This is an auto-generated mail on Fri Sep 19 12:00:00 PDT 1997
It is not checked before it leaves my workstation. However, hopefully
you will find this report interesting and will take the time to look
through this to see if you can improve the amount of aggregation you
perform.
The report is split into sections:
0) General Status
List the route table history for the last week, list any possibly
bogus routes seen and give some status on ASes.
1) Gains by aggregating at the origin AS level
This lists the "Top 30" players who if they decided to aggregate
their announced classful prefixes at the origin AS level could
make a significant difference in the reduction of the current
size of the Internet routing table. This calculation does not
take into account the inclusion of holes when forming an aggregate
so it is possible even larger reduction should be possible.
2) Weekly Delta
A summary of the last weeks changes in terms of withdrawn and
added routes. Please note that this is only a snapshot but does
give some indication of ASes participating in CIDR. Clearly,
it is generally a good thing to see a large amont of withdrawls.
3) Interesting aggregates
Interesting here means not an aggregate made as a set of
classful routes.
Thanks to xara.net for giving me access to their routing tables once a
day.
Please send any comments about this report directly to me.
Check http://www.employees.org/~tbates/cidr-report.html for a daily
update of this report.
------------------------------------------------------------------------------
CIDR REPORT for 19Sep97
0) General Status
Table History
-------------
Date Prefixes
120997 46642
130997 46931
140997 46414
150997 46490
160997 46284
170997 46748
180997 46311
190997 46639
Check http://www.employees.org/~tbates/cidr.plot.html for a plot
of the table history.
Possible Bogus Routes
---------------------
AS Summary
----------
Number of ASes in routing system: 2682
Number of ASes announcing only one prefix: 1238 (642 cidr, 596 classful)
Largest number of cidr routes: 462 announced by AS3561
Largest number of classful routes: 955 announced by AS1
1) Gains by aggregating at the origin AS level
--- 19Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 827 483 344 41.6% iSTAR Internet, Inc.
AS2048 415 184 231 55.7% LaNet
AS174 934 708 226 24.2% Performance Systems International
AS3602 492 292 200 40.7% Sprint Canada Inc.
AS4293 258 133 125 48.4% IMCI
AS1967 182 69 113 62.1% Middle East Technical University
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 233 137 96 41.2% Bell Solutions
AS2704 253 177 76 30.0% HOOKUP-NET-A
AS1 955 879 76 8.0% BBNPLANET
AS701 884 813 71 8.0% Alternet
AS549 268 204 64 23.9% ONet Backbone
AS1239 643 579 64 10.0% SprintLink Backbone
AS1221 379 321 58 15.3% AARNET-AS
AS72 83 29 54 65.1% Schlumberger Information Network
AS5668 65 12 53 81.5% Century Telephone Inc.
AS816 260 210 50 19.2% UUNET Canada (ASN-UUNETCA-AS4)
AS271 105 56 49 46.7% BCnet Backbone
AS719 571 524 47 8.2% LANLINK autonomous system
AS4763 112 65 47 42.0% Telstra New Zealand
AS4648 179 132 47 26.3% NZIX 2
AS3561 940 898 42 4.5% MCI
AS2711 99 59 40 40.4% SUNBELT-AS
AS721 308 269 39 12.7% DLA-ASNBLOCK-AS
AS3464 85 47 38 44.7% ASC-NET
AS1691 163 125 38 23.3% BCTEL
AS5769 131 94 37 28.2% Le Groupe Videotron Ltee
AS7545 117 81 36 30.8% TPG Internet Pty Ltd
AS6412 48 12 36 75.0% Gulfnet International
AS4983 62 28 34 54.8% Intel Corporation Autonomous Syst
--- 18Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 837 488 349 41.7% iSTAR Internet, Inc.
AS2048 416 180 236 56.7% LANET-1
AS174 935 706 229 24.5% Performance Systems International
AS3602 493 291 202 41.0% Sprint Canada Inc.
AS4293 327 159 168 51.4% IMCI
AS1967 182 69 113 62.1% Middle East Technical University
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 233 137 96 41.2% Bell Solutions
AS701 919 837 82 8.9% Alternet
AS816 355 277 78 22.0% UUNET Canada (ASN-UUNETCA-AS4)
AS2704 258 181 77 29.8% HOOKUP-NET-A
AS1 952 879 73 7.7% BBNPLANET
AS549 266 202 64 24.1% ONet Backbone
AS1239 631 567 64 10.1% SprintLink Backbone
AS3464 122 62 60 49.2% ASC-NET
AS5668 72 15 57 79.2% Century Telephone Inc.
AS1221 378 321 57 15.1% AARNET-AS
AS72 83 29 54 65.1% Schlumberger Information Network
AS719 571 524 47 8.2% LANLINK autonomous system
AS4763 112 65 47 42.0% Telstra New Zealand
AS4648 162 119 43 26.5% NZIX 2
AS3561 936 894 42 4.5% MCI
AS1691 169 127 42 24.9% BCTEL
AS271 95 54 41 43.2% BCnet Backbone
AS5769 137 97 40 29.2% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS721 310 271 39 12.6% DLA-ASNBLOCK-AS
AS813 163 127 36 22.1% UUNET Canada (ASN-UUNETCA-AS1)
AS6412 48 12 36 75.0% Gulfnet International
AS3564 63 29 34 54.0% Microserve Infromation Systems In
--- 17Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 836 491 345 41.3% iSTAR Internet, Inc.
AS2048 416 179 237 57.0% LANET-1
AS174 937 707 230 24.5% Performance Systems International
AS3602 517 304 213 41.2% Sprint Canada Inc.
AS4293 325 159 166 51.1% IMCI
AS1967 187 71 116 62.0% Middle East Technical University
AS816 437 332 105 24.0% UUNET Canada (ASN-UUNETCA-AS4)
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 233 137 96 41.2% Bell Solutions
AS1 1006 914 92 9.1% BBNPLANET
AS701 942 859 83 8.8% Alternet
AS2704 259 182 77 29.7% HOOKUP-NET-A
AS549 271 207 64 23.6% ONet Backbone
AS1239 647 583 64 9.9% SprintLink Backbone
AS5668 72 15 57 79.2% Century Telephone Inc.
AS1221 378 321 57 15.1% AARNET-AS
AS4648 199 143 56 28.1% NZIX 2
AS3464 120 64 56 46.7% ASC-NET
AS72 83 29 54 65.1% Schlumberger Information Network
AS271 106 57 49 46.2% BCnet Backbone
AS4763 112 65 47 42.0% Telstra New Zealand
AS719 571 525 46 8.1% LANLINK autonomous system
AS4747 113 70 43 38.1% Taiwan Telecommunication Network
AS3561 943 901 42 4.5% MCI
AS5769 137 97 40 29.2% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS721 317 278 39 12.3% DLA-ASNBLOCK-AS
AS1691 165 126 39 23.6% BCTEL
AS813 168 132 36 21.4% UUNET Canada (ASN-UUNETCA-AS1)
AS6412 47 11 36 76.6% Gulfnet International
--- 16Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 837 492 345 41.2% iSTAR Internet, Inc.
AS2048 413 171 242 58.6% LANET-1
AS174 938 715 223 23.8% Performance Systems International
AS3602 522 308 214 41.0% Sprint Canada Inc.
AS4293 321 163 158 49.2% IMCI
AS1967 187 71 116 62.0% Middle East Technical University
AS816 434 330 104 24.0% UUNET Canada (ASN-UUNETCA-AS4)
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 229 136 93 40.6% Bell Solutions
AS1 1010 919 91 9.0% BBNPLANET
AS701 943 861 82 8.7% Alternet
AS2704 257 181 76 29.6% HOOKUP-NET-A
AS549 271 207 64 23.6% ONet Backbone
AS1239 649 585 64 9.9% SprintLink Backbone
AS5668 73 13 60 82.2% Century Telephone Inc.
AS3464 121 61 60 49.6% ASC-NET
AS1221 378 321 57 15.1% AARNET-AS
AS4648 199 143 56 28.1% NZIX 2
AS72 83 29 54 65.1% Schlumberger Information Network
AS4763 112 65 47 42.0% Telstra New Zealand
AS719 571 525 46 8.1% LANLINK autonomous system
AS4747 113 70 43 38.1% Taiwan Telecommunication Network
AS3561 940 898 42 4.5% MCI
AS271 97 56 41 42.3% BCnet Backbone
AS5769 137 97 40 29.2% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS1691 166 126 40 24.1% BCTEL
AS721 301 262 39 13.0% DLA-ASNBLOCK-AS
AS6412 48 12 36 75.0% Gulfnet International
AS4200 152 116 36 23.7% AGIS (Apex Global Information Ser
--- 15Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 838 490 348 41.5% iSTAR Internet, Inc.
AS2048 412 183 229 55.6% LANET-1
AS174 918 704 214 23.3% Performance Systems International
AS3602 514 302 212 41.2% Sprint Canada Inc.
AS4293 326 162 164 50.3% IMCI
AS1967 188 72 116 61.7% Middle East Technical University
AS816 433 330 103 23.8% UUNET Canada (ASN-UUNETCA-AS4)
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 233 137 96 41.2% Bell Solutions
AS1 1006 916 90 8.9% BBNPLANET
AS701 939 858 81 8.6% Alternet
AS2704 258 180 78 30.2% HOOKUP-NET-A
AS549 271 207 64 23.6% ONet Backbone
AS1239 649 585 64 9.9% SprintLink Backbone
AS5668 73 13 60 82.2% Century Telephone Inc.
AS3464 120 62 58 48.3% ASC-NET
AS1221 378 321 57 15.1% AARNET-AS
AS4648 199 143 56 28.1% NZIX 2
AS72 83 29 54 65.1% Schlumberger Information Network
AS4763 112 65 47 42.0% Telstra New Zealand
AS719 571 525 46 8.1% LANLINK autonomous system
AS4747 113 70 43 38.1% Taiwan Telecommunication Network
AS3561 936 894 42 4.5% MCI
AS271 96 55 41 42.7% BCnet Backbone
AS5769 136 96 40 29.4% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS1691 167 127 40 24.0% BCTEL
AS721 302 264 38 12.6% DLA-ASNBLOCK-AS
AS813 169 133 36 21.3% UUNET Canada (ASN-UUNETCA-AS1)
AS6412 48 12 36 75.0% Gulfnet International
--- 14Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 837 492 345 41.2% iSTAR Internet, Inc.
AS2048 404 179 225 55.7% LANET-1
AS174 922 700 222 24.1% Performance Systems International
AS3602 516 304 212 41.1% Sprint Canada Inc.
AS4293 324 161 163 50.3% IMCI
AS1967 188 72 116 61.7% Middle East Technical University
AS816 432 329 103 23.8% UUNET Canada (ASN-UUNETCA-AS4)
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 229 136 93 40.6% Bell Solutions
AS1 1006 917 89 8.8% BBNPLANET
AS701 937 854 83 8.9% Alternet
AS2704 258 180 78 30.2% HOOKUP-NET-A
AS1239 649 585 64 9.9% SprintLink Backbone
AS549 270 207 63 23.3% ONet Backbone
AS5668 73 13 60 82.2% Century Telephone Inc.
AS3464 120 62 58 48.3% ASC-NET
AS1221 376 319 57 15.2% AARNET-AS
AS4648 197 141 56 28.4% NZIX 2
AS72 83 29 54 65.1% Schlumberger Information Network
AS4763 112 65 47 42.0% Telstra New Zealand
AS719 571 525 46 8.1% LANLINK autonomous system
AS4747 115 71 44 38.3% Taiwan Telecommunication Network
AS3561 938 896 42 4.5% MCI
AS5769 136 96 40 29.4% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS1691 167 127 40 24.0% BCTEL
AS271 93 54 39 41.9% BCnet Backbone
AS721 303 265 38 12.5% DLA-ASNBLOCK-AS
AS813 170 134 36 21.2% UUNET Canada (ASN-UUNETCA-AS1)
AS6412 48 12 36 75.0% Gulfnet International
--- 13Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 832 489 343 41.2% iSTAR Internet, Inc.
AS2048 406 176 230 56.7% LANET-1
AS174 927 704 223 24.1% Performance Systems International
AS3602 517 304 213 41.2% Sprint Canada Inc.
AS4293 313 165 148 47.3% IMCI
AS1967 188 72 116 61.7% Middle East Technical University
AS816 433 330 103 23.8% UUNET Canada (ASN-UUNETCA-AS4)
AS1 1022 919 103 10.1% BBNPLANET
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 233 137 96 41.2% Bell Solutions
AS701 938 856 82 8.7% Alternet
AS2704 259 181 78 30.1% HOOKUP-NET-A
AS549 272 208 64 23.5% ONet Backbone
AS1239 649 585 64 9.9% SprintLink Backbone
AS5668 73 13 60 82.2% Century Telephone Inc.
AS3464 120 62 58 48.3% ASC-NET
AS1221 374 317 57 15.2% AARNET-AS
AS4648 199 143 56 28.1% NZIX 2
AS72 83 29 54 65.1% Schlumberger Information Network
AS4763 112 65 47 42.0% Telstra New Zealand
AS719 571 525 46 8.1% LANLINK autonomous system
AS3561 940 897 43 4.6% MCI
AS4747 112 70 42 37.5% Taiwan Telecommunication Network
AS271 97 56 41 42.3% BCnet Backbone
AS5769 136 96 40 29.4% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS1691 166 126 40 24.1% BCTEL
AS721 302 264 38 12.6% DLA-ASNBLOCK-AS
AS813 170 134 36 21.2% UUNET Canada (ASN-UUNETCA-AS1)
AS6412 48 12 36 75.0% Gulfnet International
--- 12Sep97 ---
ASnum NetsNow NetsCIDR NetGain % Gain Description
AS2493 836 487 349 41.7% iSTAR Internet, Inc.
AS2048 415 178 237 57.1% LANET-1
AS174 936 713 223 23.8% Performance Systems International
AS3602 513 303 210 40.9% Sprint Canada Inc.
AS4293 324 158 166 51.2% IMCI
AS1967 188 72 116 61.7% Middle East Technical University
AS1 1021 918 103 10.1% BBNPLANET
AS816 429 330 99 23.1% UUNET Canada (ASN-UUNETCA-AS4)
AS701 1045 947 98 9.4% Alternet
AS839 124 27 97 78.2% North West Territories Regional N
AS3804 233 137 96 41.2% Bell Solutions
AS7195 125 40 85 68.0% INTERRED
AS2704 259 182 77 29.7% HOOKUP-NET-A
AS549 271 207 64 23.6% ONet Backbone
AS1239 647 584 63 9.7% SprintLink Backbone
AS5668 73 13 60 82.2% Century Telephone Inc.
AS3464 121 63 58 47.9% ASC-NET
AS1221 376 319 57 15.2% AARNET-AS
AS4648 199 143 56 28.1% NZIX 2
AS72 83 29 54 65.1% Schlumberger Information Network
AS271 106 57 49 46.2% BCnet Backbone
AS4763 112 65 47 42.0% Telstra New Zealand
AS719 566 522 44 7.8% LANLINK autonomous system
AS4747 115 71 44 38.3% Taiwan Telecommunication Network
AS3561 940 897 43 4.6% MCI
AS5769 136 96 40 29.4% Le Groupe Videotron Ltee
AS2711 99 59 40 40.4% SUNBELT-AS
AS1691 165 125 40 24.2% BCTEL
AS721 299 262 37 12.4% DLA-ASNBLOCK-AS
AS813 171 135 36 21.1% UUNET Canada (ASN-UUNETCA-AS1)
2) Weekly Delta
This a daily snapshot of changes in classful routes being withdrawn and added.
the deltas are calculated over a rolling 7 day period. Please bear in mind this
is purely a "snapshot" and a large flucuation could be caused by a connectivity
problem for example. However, this does give some indication of service
providers that are moving to classless routing.
Top 20 Withdrawn Classful Routes from 12Sep97 to 19Sep97
-193 AS705 ALTERNET-AS
-169 AS816 UUNET Canada (ASN-UUNETCA-AS4)
-161 AS701 Alternet
-120 AS7195 INTERRED
-81 AS4747 Taiwan Telecommunication Network
-66 AS4293 IMCI
-44 AS813 UUNET Canada (ASN-UUNETCA-AS1)
-42 AS4200 AGIS (Apex Global Information Ser
-37 AS2707 WEC
-36 AS3464 ASC-NET
-34 AS6181 FUSE-NET
-31 AS4740 OzEmail ISP
-27 AS7046 UUNET-CUSTOMER
-26 AS684 Manitoba Regional Network Backbon
-23 AS7954 DYNANET-ASN
-22 AS7777 VIX2
-21 AS3602 Sprint Canada Inc.
-20 AS4648 NZIX 2
-19 AS7349 INTERLAN
-18 AS6392 MidWest Communications, Inc.
Top 20 Added Classful Routes from 12Sep97 to 19Sep97
72 AS7545 TPG Internet Pty Ltd
64 AS4958 LDSNET
9 AS721 DLA-ASNBLOCK-AS
7 AS3240 Sektornet, DK Ministry of Educati
6 AS3951 ICONNET
5 AS5666 Omnes - A Schlumberger and Cable
4 AS2109 DKnet
3 AS1221 AARNET-AS
2 AS685 NorthWestNet Primary AS
1 AS3315 RELARN-SPB
This a daily snapshot of changes in classles routes being withdrawn and added.
Top 20 Withdrawn Classles Routes from 12Sep97 to 19Sep97
-53 AS701 Alternet
-17 AS3561 MCI
-12 AS6381 AS 6381 Object
-11 AS7569 Australian Academic and Reasearch
-8 AS7545 TPG Internet Pty Ltd
-7 AS131 University of California, Santa B
-5 AS93 MIDnet
-4 AS4004 Global IP
-3 AS5427 TCP/IP GmbH Contrib.Net, Germany
-2 AS6203 ISDN-Net Inc.
-1 AS4999 SPRINTIPDIAL
Top 20 Added Classles Routes from 12Sep97 to 19Sep97
80 AS6254 EGGINC
20 AS7777 VIX2
9 AS3763 Aimnet Corporation
7 AS10368 DNAI
5 AS2563 KoRea Education Network
4 AS6595 DODDSEUR
3 AS10435 IDCOMM
2 AS8355 PSINet Europe
1 AS5408 Greek Research and Technology Net
3) Interesting aggregates
List of possibly interesting aggregates
---------------------------------------
Aggregate | Origin | AS Description | Netname
-------------------------------------------------------------------------------
166.49.145.0/24 | AS8455 | BT Austria Regional IP | MCI Telecommunications
166.49.146.0/24 | AS8455 | BT Austria Regional IP | MCI Telecommunications
195.190.68.192/26 | AS8355 | PSINet Europe | European Regional Inter
195.134.193.128/25 | AS8355 | PSINet Europe | European Regional Inter
149.237.200.0/24 | AS8309 | TechNet GmbH | Wiechers & Partner Date
192.121.118.8/29 | AS8213 | dixnet | SUNET (NET-SUNET4) SUN
192.121.118.248/29 | AS8213 | dixnet | SUNET (NET-SUNET4) SUN
195.54.128.0/28 | AS8213 | dixnet | European Regional Inter
195.54.130.0/28 | AS8213 | dixnet | European Regional Inter
195.54.128.16/28 | AS8213 | dixnet | European Regional Inter
195.54.128.32/28 | AS8213 | dixnet | European Regional Inter
195.54.128.48/28 | AS8213 | dixnet | European Regional Inter
160.43.253.0/24 | AS8188 | Bloomberg Financial Mar | Bloomberg Financial Mar
151.204.128.0/18 | AS8115 | BAIS-ASBLK | Bell Atlantic (NETBLK-B
151.204.0.0/18 | AS8114 | Bell Atlantic Internet | Bell Atlantic (NETBLK-B
157.22.160.0/19 | AS8046 | NAPANET | Zocalo Engineering (NET
157.22.192.0/21 | AS8046 | NAPANET | Zocalo Engineering (NET
44.92.18.0/24 | AS8041 | ATW | Amateur Radio Digital C
147.160.224.0/20 | AS7816 | NORTHWESTCTCNET | Concurrent Technologies
142.205.36.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
142.205.64.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
142.205.208.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
142.205.212.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
142.205.232.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
142.205.240.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
142.205.248.0/23 | AS7734 | AS for TDBANK | Canadian Research Netwo
169.153.0.0/17 | AS7687 | APNIC-AS-2-BLOCK | Tech Data Corporation (
169.153.128.0/17 | AS7687 | APNIC-AS-2-BLOCK | Tech Data Corporation (
163.195.192.0/19 | AS7460 | LIA-NET | Cape Provincial Adminis
129.231.48.0/21 | AS7435 | ATM-CIN | Digital Commnications A
129.231.56.0/24 | AS7435 | ATM-CIN | Digital Commnications A
129.231.59.0/24 | AS7435 | ATM-CIN | Digital Commnications A
138.87.1.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.7.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.8.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.11.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.57.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.58.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.126.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
138.87.201.0/24 | AS7386 | ILLINOIS-STATE-UNIV | Illinois State Universi
146.115.132.0/23 | AS7174 | Onward Technologies, In | UltraNet Communications
132.45.120.0/21 | AS7170 | DISC/DREN | Chanute Air Force Base
165.90.17.0/24 | AS7091 | Primary AS for ViaNet | Pagesat Inc. (NET-PAGES
192.77.198.0/25 | AS7068 | PFIZERNET | Performance Systems Int
192.77.198.128/25 | AS7068 | PFIZERNET | Performance Systems Int
130.213.0.0/17 | AS7046 | UUNET-CUSTOMER | Rational (NET-RATNET)
130.213.128.0/17 | AS7046 | UUNET-CUSTOMER | Rational (NET-RATNET)
161.188.250.0/24 | AS7021 | Bell Atlantic Internet | Philadelphia Newspapers
140.235.64.0/22 | AS7018 | AT&T worldnet network | Sequoia Systems, Inc. (
140.235.68.0/22 | AS7018 | AT&T worldnet network | Sequoia Systems, Inc. (
140.235.72.0/22 | AS7018 | AT&T worldnet network | Sequoia Systems, Inc. (
155.250.131.0/24 | AS7018 | AT&T worldnet network | E.Merck (NET-E-MERCK)
155.250.132.0/23 | AS7018 | AT&T worldnet network | E.Merck (NET-E-MERCK)
155.250.135.0/24 | AS7018 | AT&T worldnet network | E.Merck (NET-E-MERCK)
130.140.146.0/24 | AS6920 | TRADEMED-AS | Philips Components BV (
130.140.150.0/24 | AS6920 | TRADEMED-AS | Philips Components BV (
130.140.152.0/24 | AS6920 | TRADEMED-AS | Philips Components BV (
129.181.172.0/24 | AS6897 | Global-One Spain | Bull Louveciennes (NET-
129.181.173.0/24 | AS6897 | Global-One Spain | Bull Louveciennes (NET-
129.181.200.0/21 | AS6897 | Global-One Spain | Bull Louveciennes (NET-
193.189.241.0/27 | AS6805 | mediaWays Autonomous Sy | European Regional Inter
193.189.241.128/25 | AS6805 | mediaWays Autonomous Sy | European Regional Inter
140.145.230.0/24 | AS6785 | CyberCity, Copenhagen, | TRW Financial Systems (
152.158.84.0/24 | AS6755 | ASN - TURNET | Advantis (NET-ADVANTIS-
151.189.0.0/24 | AS6751 | CALLISTO | Callisto Germany.Net Gm
149.224.128.0/17 | AS6705 | Hassler & Mair GmbH | c/o University of Dortm
165.113.166.0/24 | AS6607 | HOMENET | CRL Network Services, I
167.216.128.0/17 | AS6553 | DIGISLE-NET | Manoa Innovation Center
142.194.32.0/19 | AS6537 | UNITEL-PDA | CA*Net (NETBLK-CANET-B-
142.194.96.0/19 | AS6537 | UNITEL-PDA | CA*Net (NETBLK-CANET-B-
142.194.128.0/19 | AS6537 | UNITEL-PDA | CA*Net (NETBLK-CANET-B-
142.194.160.0/19 | AS6537 | UNITEL-PDA | CA*Net (NETBLK-CANET-B-
142.194.224.0/19 | AS6537 | UNITEL-PDA | CA*Net (NETBLK-CANET-B-
146.126.2.0/24 | AS6501 | SOUTHERNET | Southern Company Servic
146.126.51.0/24 | AS6501 | SOUTHERNET | Southern Company Servic
146.126.86.0/24 | AS6501 | SOUTHERNET | Southern Company Servic
156.28.4.0/24 | AS6474 | FLASHNET-AS | Turbomeca (NET-TURBOMEC
156.28.5.0/24 | AS6474 | FLASHNET-AS | Turbomeca (NET-TURBOMEC
156.28.26.0/24 | AS6474 | FLASHNET-AS | Turbomeca (NET-TURBOMEC
168.234.128.0/24 | AS6458 | EMPRESSA GUATEMALTECA D | Universidad del Valle d
168.234.135.0/24 | AS6458 | EMPRESSA GUATEMALTECA D | Universidad del Valle d
147.249.3.0/24 | AS6419 | IDD | IDD Information Service
148.212.48.0/20 | AS6332 | TELNOR | Universidad Autonoma de
148.212.64.0/18 | AS6332 | TELNOR | Universidad Autonoma de
148.212.128.0/17 | AS6332 | TELNOR | Universidad Autonoma de
150.187.40.0/21 | AS6306 | T-NET-AS | Consejo Nacional de Inv
134.129.0.0/18 | AS6263 | NDIN | North Dakota State Univ
134.129.64.0/18 | AS6263 | NDIN | North Dakota State Univ
134.129.128.0/17 | AS6263 | NDIN | North Dakota State Univ
165.88.10.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.11.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.15.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.16.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.17.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.19.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.24.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.27.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.28.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.29.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.30.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.31.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.32.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.33.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.34.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.35.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.37.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.38.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.39.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.40.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.42.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.43.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.44.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.45.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.46.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.47.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.50.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.51.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.94.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.100.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.101.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.102.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.103.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.105.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.106.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.108.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.109.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.110.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.111.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.112.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.113.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.115.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.116.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.117.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.118.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.119.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.121.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.122.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.123.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.124.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.125.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.126.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.128.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.129.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.130.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.131.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.132.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.133.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.134.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.135.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.151.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.152.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.154.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.155.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.158.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.159.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.160.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.166.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.168.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.177.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.179.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.182.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.195.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.200.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.206.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.217.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.219.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.230.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.235.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.236.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.240.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.242.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.243.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.251.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.252.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.253.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
165.88.254.0/24 | AS6254 | EGGINC | EG&G, Inc./ Corporate H
146.115.96.0/22 | AS6249 | UltraNet RI | UltraNet Communications
169.228.128.0/19 | AS6192 | UCDAVIS-CORE | University of Californi
169.228.160.0/20 | AS6192 | UCDAVIS-CORE | University of Californi
163.195.0.0/17 | AS6187 | Global One South Africa | Cape Provincial Adminis
163.195.128.0/18 | AS6187 | Global One South Africa | Cape Provincial Adminis
170.162.231.0/24 | AS6140 | ImpSat Corp | Nabisco, Inc. (NET-RJRN
170.162.232.0/24 | AS6140 | ImpSat Corp | Nabisco, Inc. (NET-RJRN
162.122.9.0/24 | AS6140 | ImpSat Corp | Maraven S.A. (NET-MARAV
162.122.12.0/24 | AS6140 | ImpSat Corp | Maraven S.A. (NET-MARAV
200.31.0.0/25 | AS6140 | ImpSat Corp | IMPSAT MEXICO (NETBLK-I
200.31.0.128/30 | AS6140 | ImpSat Corp | IMPSAT MEXICO (NETBLK-I
165.113.197.0/24 | AS6086 | INFOMAGIC | CRL Network Services, I
165.113.198.0/24 | AS6086 | INFOMAGIC | CRL Network Services, I
165.113.199.0/24 | AS6086 | INFOMAGIC | CRL Network Services, I
165.113.211.0/24 | AS6086 | INFOMAGIC | CRL Network Services, I
161.223.90.0/23 | AS6077 | Network Intensive - A D | Indian Health Service (
165.244.32.0/19 | AS6068 | LG-AS | Systems Technology Mana
165.244.64.0/18 | AS6068 | LG-AS | Systems Technology Mana
138.183.100.0/24 | AS5872 | DDN-ASNBLK | NCTC (NET-CISCO-BLOCK29
148.94.35.0/24 | AS5714 | EDS-WEBS | EDS Network Naming & Ad
148.94.210.0/24 | AS5714 | EDS-WEBS | EDS Network Naming & Ad
135.14.65.0/24 | AS5696 | GoodNet AS | Lucent Technologies (NE
139.61.102.0/23 | AS5696 | GoodNet AS | Litton Computer Service
165.247.10.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.31.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.33.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.34.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.36.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.47.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.49.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.50.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.57.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.58.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.65.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.70.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.73.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.76.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.77.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.78.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.81.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.88.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.92.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.98.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.101.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.134.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.210.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.234.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.236.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.245.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.246.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
165.247.248.0/24 | AS5696 | GoodNet AS | Internet Direct, Inc. (
157.232.100.0/24 | AS5696 | GoodNet AS | Health Data Sciences Co
198.60.153.49/32 | AS5696 | GoodNet AS | Arizona Tri-University
165.215.191.0/24 | AS5683 | Cable and Wireless Inte | Bell & Howell Company (
155.136.224.0/24 | AS5564 | Scotland On Line | The Royal Bank of Scotl
148.160.0.0/19 | AS5556 | Telenordia AB | Boras Energi (NET-BS-EN
148.160.6.0/24 | AS5556 | Telenordia AB | Boras Energi (NET-BS-EN
158.177.32.0/19 | AS5551 | CWC Internet Services | KPMG Peat Marwick (NET-
153.96.76.0/24 | AS5501 | Fraunhofer Gesellschaft | Fraunhofer Institut fue
153.97.64.0/18 | AS5501 | Fraunhofer Gesellschaft | Fraunhofer Institut fue
153.97.128.0/18 | AS5501 | Fraunhofer Gesellschaft | Fraunhofer Institut fue
192.116.207.0/27 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.227.0/25 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.206.80/28 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.206.96/28 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.207.48/28 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.207.64/28 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.213.48/28 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.226.64/27 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.226.96/27 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.206.112/28 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.206.128/27 | AS5486 | Euronet Digital Communi | Israeli Network Informa
192.116.206.192/27 | AS5486 | Euronet Digital Communi | Israeli Network Informa
164.39.244.0/24 | AS5484 | BT Netherlands Regional | No match for "164.39.0.
158.152.0.224/29 | AS5417 | Demon Internet Ltd | Demon Internet Limited
143.233.20.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.40.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.52.0/23 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.54.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.68.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.70.0/23 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.80.0/20 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.96.0/22 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.120.0/22 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.182.0/23 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.184.0/22 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.188.0/23 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.204.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.225.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.226.0/23 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.228.0/23 | AS5408 | Greek Research and Tech | National Centre for Sci
143.233.230.0/24 | AS5408 | Greek Research and Tech | National Centre for Sci
166.49.129.0/24 | AS5400 | BT INCS network. | MCI Telecommunications
57.12.0.0/16 | AS5384 | Etisalat Emirates Inter | SITA-Societe Internatio
132.155.204.0/24 | AS5384 | Etisalat Emirates Inter | NESTE OY (NET-NESTE-NET
195.204.42.0/25 | AS5381 | PowerTech Information S | European Regional Inter
195.204.43.0/27 | AS5381 | PowerTech Information S | European Regional Inter
195.204.43.32/27 | AS5381 | PowerTech Information S | European Regional Inter
147.73.192.0/18 | AS5050 | PSC AS for connect to M | Pittsburgh Supercomputi
160.81.101.0/24 | AS4861 | Global IP / Global Spri | Sprint International (N
163.44.224.0/23 | AS4853 | Justsystem Corporation | Justsystem Corporation
139.175.10.0/23 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.14.0/23 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.16.0/21 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.24.0/22 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.28.0/23 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.102.0/23 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.104.0/21 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.112.0/22 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.118.0/23 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.144.0/22 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.148.0/23 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.150.0/24 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.160.0/21 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
139.175.176.0/20 | AS4780 | INSTITUTE FOR INFORMATI | Institution for Informa
164.100.80.0/24 | AS4755 | Videsh Sanchar Nigam Lt | National Informatics Ce
164.100.199.0/24 | AS4755 | Videsh Sanchar Nigam Lt | National Informatics Ce
138.206.254.0/24 | AS4742 | AT&T EasyLink Services | Potter Partners Limited
136.1.238.0/23 | AS4742 | AT&T EasyLink Services | Ford Motor Company (NET
143.99.24.0/24 | AS4740 | OzEmail ISP | Landis & Gyr Betriebs C
158.40.3.0/24 | AS4740 | OzEmail ISP | Department of Prime Min
158.40.4.0/24 | AS4740 | OzEmail ISP | Department of Prime Min
134.65.92.0/24 | AS4736 | Magnadata Australia Pty | Avon Products Incorpora
165.244.0.0/19 | AS4668 | AS Object of LGEDS in K | Systems Technology Mana
146.222.7.0/24 | AS4637 | Hong Kong Telecom | Hewlett-Packard Company
146.222.11.0/24 | AS4637 | Hong Kong Telecom | Hewlett-Packard Company
146.222.198.0/23 | AS4637 | Hong Kong Telecom | Hewlett-Packard Company
152.160.0.0/17 | AS4595 | ICNET | 24 Frank Lloyd Wright D
152.160.128.0/17 | AS4595 | ICNET | 24 Frank Lloyd Wright D
129.171.32.0/19 | AS4511 | MIAMI-EDU | University of Miami (NE
129.171.64.0/19 | AS4511 | MIAMI-EDU | University of Miami (NE
129.171.96.0/19 | AS4511 | MIAMI-EDU | University of Miami (NE
129.171.128.0/19 | AS4511 | MIAMI-EDU | University of Miami (NE
129.171.160.0/19 | AS4511 | MIAMI-EDU | University of Miami (NE
166.49.163.0/24 | AS4292 | MCI Reston | MCI Telecommunications
157.179.0.0/21 | AS4274 | AuNet Autonomous System | CDG (NET-CDGTH-NET)
157.179.8.0/23 | AS4274 | AuNet Autonomous System | CDG (NET-CDGTH-NET)
157.179.10.0/24 | AS4274 | AuNet Autonomous System | CDG (NET-CDGTH-NET)
165.90.2.0/24 | AS4263 | CERNET-ASN-BLOCK | Pagesat Inc. (NET-PAGES
165.90.16.0/24 | AS4263 | CERNET-ASN-BLOCK | Pagesat Inc. (NET-PAGES
165.90.128.0/19 | AS4263 | CERNET-ASN-BLOCK | Pagesat Inc. (NET-PAGES
165.90.224.0/19 | AS4263 | CERNET-ASN-BLOCK | Pagesat Inc. (NET-PAGES
206.250.40.0/25 | AS4200 | AGIS (Apex Global Infor | Overland Network (NET-O
206.250.40.128/25 | AS4200 | AGIS (Apex Global Infor | Overland Network (NET-O
166.102.93.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.94.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.95.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.96.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.97.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.98.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.99.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.101.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.102.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.103.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.104.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.105.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.106.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.107.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.108.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.109.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.110.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.111.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.112.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.113.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.114.0/23 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.116.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.117.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.118.0/23 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.120.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.121.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.122.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.123.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.150.0/23 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.152.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
166.102.161.0/24 | AS4200 | AGIS (Apex Global Infor | ALLTEL Corporation (NET
206.250.27.0/26 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
205.198.78.32/27 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
205.199.213.0/25 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
206.250.203.0/25 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
206.250.204.0/26 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
206.250.27.64/26 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
205.199.213.128/25 | AS4200 | AGIS (Apex Global Infor | AGIS/Net99 (NETBLK-NET9
157.248.160.0/24 | AS4183 | CompuServe, Incorporate | Guaranty National Insur
163.124.7.0/24 | AS4058 | Primary AS for LinkAGE | Lehman Brothers (NET-SH
163.124.221.0/24 | AS4058 | Primary AS for LinkAGE | Lehman Brothers (NET-SH
156.5.252.0/23 | AS4004 | Global IP | Unilever (NET-UNILEVER2
147.85.17.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.21.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.25.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.39.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.44.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.51.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.54.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.98.0/24 | AS3951 | ICONNET | Nomura Research Institu
147.85.115.0/24 | AS3951 | ICONNET | Nomura Research Institu
132.241.33.0/24 | AS3899 | CHICO-NET | California State Univer
132.241.67.0/24 | AS3899 | CHICO-NET | California State Univer
132.241.176.0/24 | AS3899 | CHICO-NET | California State Univer
132.241.186.0/24 | AS3899 | CHICO-NET | California State Univer
132.241.248.0/24 | AS3899 | CHICO-NET | California State Univer
161.200.0.0/17 | AS3839 | CHULANET | Chulalongkorn Universit
161.200.144.0/20 | AS3839 | CHULANET | Chulalongkorn Universit
161.200.160.0/19 | AS3839 | CHULANET | Chulalongkorn Universit
149.112.251.0/24 | AS3803 | UltraNet MA | US Robotics (NET-USR-1)
149.112.252.0/23 | AS3803 | UltraNet MA | US Robotics (NET-USR-1)
149.112.254.0/24 | AS3803 | UltraNet MA | US Robotics (NET-USR-1)
165.21.7.0/24 | AS3758 | SINGNET | Singapore Telecommunica
165.21.80.0/24 | AS3758 | SINGNET | Singapore Telecommunica
138.35.221.0/24 | AS3758 | SINGNET | Compaq (NET-CPQINTL)
144.141.4.0/22 | AS3739 | NEWNET | Shore Intermediate Main
163.249.43.0/24 | AS3739 | NEWNET | Commanding Officer Navy
163.249.53.0/24 | AS3739 | NEWNET | Commanding Officer Navy
163.249.54.0/24 | AS3739 | NEWNET | Commanding Officer Navy
163.249.57.0/24 | AS3739 | NEWNET | Commanding Officer Navy
163.249.140.0/22 | AS3739 | NEWNET | Commanding Officer Navy
163.249.160.0/21 | AS3739 | NEWNET | Commanding Officer Navy
163.249.168.0/23 | AS3739 | NEWNET | Commanding Officer Navy
163.249.170.0/24 | AS3739 | NEWNET | Commanding Officer Navy
163.244.64.0/23 | AS3615 | DELL-BLK | Dell Computer Corporati
157.253.1.0/24 | AS3603 | CETCOL - Uniandes | University de Los Andes
157.253.2.0/24 | AS3603 | CETCOL - Uniandes | University de Los Andes
157.253.50.0/24 | AS3603 | CETCOL - Uniandes | University de Los Andes
138.155.40.0/24 | AS3593 | Eastern Pennsylvania In | NCTC (NET-CISCO-BLOCK2)
163.12.0.0/23 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.5.0/24 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.6.0/23 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.8.0/21 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.16.0/22 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.21.0/24 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.22.0/23 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.22.0/24 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.23.0/24 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.24.0/21 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.32.0/19 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.64.0/18 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.64.0/20 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.81.0/24 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.82.0/23 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.84.0/22 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.88.0/21 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.96.0/19 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.128.0/21 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.136.0/22 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.144.0/20 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.160.0/19 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.192.0/21 | AS3576 | PREPnet-EAST | navy aviation supply of
163.12.240.0/20 | AS3576 | PREPnet-EAST | navy aviation supply of
157.126.172.0/24 | AS3563 | Pilot Network Services, | J.M. Huber Corp. (NET-H
148.188.16.0/20 | AS3563 | Pilot Network Services, | Boehringer Ingelheim Ph
148.188.144.0/20 | AS3563 | Pilot Network Services, | Boehringer Ingelheim Ph
158.106.253.0/24 | AS3561 | MCI | VA Power Co. (NET-VANCP
167.166.248.0/21 | AS3561 | MCI | The Times Union (NET-TU
161.38.67.0/24 | AS3561 | MCI | The Art Institutes Inte
164.103.3.0/24 | AS3561 | MCI | Telecommunications Depa
163.49.131.0/24 | AS3561 | MCI | TDK Corporation (NET-TD
163.49.132.0/22 | AS3561 | MCI | TDK Corporation (NET-TD
163.49.136.0/22 | AS3561 | MCI | TDK Corporation (NET-TD
163.49.140.0/23 | AS3561 | MCI | TDK Corporation (NET-TD
163.49.142.0/24 | AS3561 | MCI | TDK Corporation (NET-TD
150.20.13.0/24 | AS3561 | MCI | Sumitomo Electric Hight
168.14.1.0/24 | AS3561 | MCI | State of Georgia/Board
168.14.2.0/23 | AS3561 | MCI | State of Georgia/Board
168.14.4.0/22 | AS3561 | MCI | State of Georgia/Board
168.14.8.0/21 | AS3561 | MCI | State of Georgia/Board
168.14.16.0/20 | AS3561 | MCI | State of Georgia/Board
166.151.192.0/18 | AS3561 | MCI | Service Provider Corpor
132.235.204.0/24 | AS3561 | MCI | Ohio University (NET-OH
147.206.20.0/24 | AS3561 | MCI | Ochsner Foundation (NET
161.120.6.0/24 | AS3561 | MCI | Norton Company (NET-SGC
161.181.37.0/24 | AS3561 | MCI | Nordstrom, Inc. (NET-NO
164.100.64.0/20 | AS3561 | MCI | National Informatics Ce
164.100.81.0/24 | AS3561 | MCI | National Informatics Ce
164.100.82.0/23 | AS3561 | MCI | National Informatics Ce
164.100.84.0/22 | AS3561 | MCI | National Informatics Ce
164.100.88.0/21 | AS3561 | MCI | National Informatics Ce
164.100.96.0/19 | AS3561 | MCI | National Informatics Ce
164.100.167.0/24 | AS3561 | MCI | National Informatics Ce
170.107.206.0/24 | AS3561 | MCI | Medical Economics Data
134.241.50.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.51.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.52.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.167.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.168.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.169.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.170.0/24 | AS3561 | MCI | Massachusetts Higher Ed
134.241.232.0/24 | AS3561 | MCI | Massachusetts Higher Ed
159.179.0.0/24 | AS3561 | MCI | MIGROSBANK (NET-MIGROSB
162.54.120.0/21 | AS3561 | MCI | MCI (Systems Engineerin
165.166.123.0/24 | AS3561 | MCI | Info Avenue Internet Se
165.108.130.0/23 | AS3561 | MCI | ITOCHU Corporation (NET
165.108.132.0/22 | AS3561 | MCI | ITOCHU Corporation (NET
165.108.136.0/21 | AS3561 | MCI | ITOCHU Corporation (NET
165.108.144.0/22 | AS3561 | MCI | ITOCHU Corporation (NET
165.108.148.0/23 | AS3561 | MCI | ITOCHU Corporation (NET
147.116.63.0/24 | AS3561 | MCI | Hercules, Inc. (NET-HER
147.116.64.0/23 | AS3561 | MCI | Hercules, Inc. (NET-HER
147.116.160.0/21 | AS3561 | MCI | Hercules, Inc. (NET-HER
147.116.168.0/22 | AS3561 | MCI | Hercules, Inc. (NET-HER
167.208.125.0/24 | AS3561 | MCI | Harcourt Brace & Co. (N
158.60.20.0/24 | AS3561 | MCI | Gage Marketing Group (N
137.170.136.0/24 | AS3561 | MCI | Freudenberg-NOK (NET-FN
136.140.9.0/24 | AS3561 | MCI | Ford Motor Company (NET
169.200.12.0/24 | AS3561 | MCI | First Union National Ba
164.84.105.0/24 | AS3561 | MCI | Cytec Industries Inc. (
159.140.213.0/24 | AS3561 | MCI | Cerner Corporation (NET
159.140.254.0/24 | AS3561 | MCI | Cerner Corporation (NET
168.97.37.0/24 | AS3561 | MCI | Carlson Companies (NET-
144.243.4.0/24 | AS3561 | MCI | ARINC (NET-ARINC-NET)
138.108.100.0/24 | AS3561 | MCI | A.C. Nielsen Company (N
163.180.96.0/19 | AS3559 | KORNET-3559 Autonomous- | Kyunghee Univ. Computer
163.180.128.0/17 | AS3559 | KORNET-3559 Autonomous- | Kyunghee Univ. Computer
162.33.32.0/19 | AS3491 | CAIS Internet | RAM Communications Cons
162.33.64.0/18 | AS3491 | CAIS Internet | RAM Communications Cons
162.33.128.0/17 | AS3491 | CAIS Internet | RAM Communications Cons
143.222.116.0/24 | AS3407 | Interpath | Cummins Engine Company
149.172.150.0/24 | AS3402 | TerraNet, Inc. | Ikos Systems Incorporat
164.167.103.0/24 | AS3392 | Infinet Norfolk - MAE-E | Bureau of Medicine and
163.49.143.0/24 | AS3384 | New York Net | TDK Corporation (NET-TD
163.49.144.0/22 | AS3384 | New York Net | TDK Corporation (NET-TD
159.164.232.0/24 | AS3384 | New York Net | Nabisco, Inc. (NET-RJRN
167.216.0.0/17 | AS3381 | MHPCC-AS | Manoa Innovation Center
144.206.1.0/24 | AS3316 | RELARN-MSK | KIAE Kurchatov National
144.206.2.0/24 | AS3316 | RELARN-MSK | KIAE Kurchatov National
144.206.12.0/24 | AS3316 | RELARN-MSK | KIAE Kurchatov National
144.206.13.0/24 | AS3316 | RELARN-MSK | KIAE Kurchatov National
144.206.160.0/19 | AS3316 | RELARN-MSK | KIAE Kurchatov National
167.170.6.0/23 | AS3313 | I.Net S.p.A. | MEMC Electronic Materia
167.170.32.0/23 | AS3313 | I.Net S.p.A. | MEMC Electronic Materia
194.19.0.15/32 | AS3308 | TeliaNet Denmark | European Regional Inter
194.19.190.15/32 | AS3308 | TeliaNet Denmark | European Regional Inter
156.51.150.0/24 | AS3301 | TeliaNet Sweden | Vasakronan (NET-VASAKRO
156.51.204.0/24 | AS3301 | TeliaNet Sweden | Vasakronan (NET-VASAKRO
146.75.251.0/24 | AS3301 | TeliaNet Sweden | Nexus AB (NET-COMBITECH
146.75.254.0/24 | AS3301 | TeliaNet Sweden | Nexus AB (NET-COMBITECH
171.25.128.0/19 | AS3301 | TeliaNet Sweden | European Regional Inter
192.36.187.64/26 | AS3301 | TeliaNet Sweden | ENEA Data AB (NET-SWNET
192.36.187.128/26 | AS3301 | TeliaNet Sweden | ENEA Data AB (NET-SWNET
148.160.250.0/23 | AS3301 | TeliaNet Sweden | Boras Energi (NET-BS-EN
148.160.250.0/24 | AS3301 | TeliaNet Sweden | Boras Energi (NET-BS-EN
148.160.251.0/24 | AS3301 | TeliaNet Sweden | Boras Energi (NET-BS-EN
161.36.160.0/23 | AS3301 | TeliaNet Sweden | Black & Decker Corporat
149.212.0.0/18 | AS3292 | Tele Danmark Internet E | Siemens-Nixdorf Informa
166.48.7.248/30 | AS3292 | Tele Danmark Internet E | MCI Internet Services (
160.97.224.0/19 | AS3269 | TELECOM ITALIA | Universita' della Calab
194.85.40.44/30 | AS3267 | RUNNet | European Regional Inter
194.85.40.48/30 | AS3267 | RUNNet | European Regional Inter
194.85.40.52/30 | AS3267 | RUNNet | European Regional Inter
194.85.40.58/32 | AS3267 | RUNNet | European Regional Inter
194.85.40.229/32 | AS3267 | RUNNet | European Regional Inter
193.125.154.20/30 | AS3267 | RUNNet | European Regional Inter
139.160.64.0/22 | AS3215 | RAIN | Merlin Gerin (NET-MGLAN
171.18.1.0/24 | AS3215 | RAIN | European Regional Inter
161.132.0.0/17 | AS3132 | Red Cientifica Peruana | Red Cientifica Peruana
161.132.128.0/17 | AS3132 | Red Cientifica Peruana | Red Cientifica Peruana
165.212.158.0/24 | AS2941 | CSCNS-AS | USA.NET, Inc. (NET-USAN
165.212.230.0/24 | AS2941 | CSCNS-AS | USA.NET, Inc. (NET-USAN
160.92.129.0/24 | AS2917 | OLEANE - UUNET PIPEX In | Axime S.A. (NET-SEGIN)
149.244.16.0/21 | AS2871 | Internet Services GmbH | Knorr-Bremse AG, Muench
146.193.60.0/22 | AS2860 | IP Global, Informatica | INESC (NET-INESC)
145.17.100.0/24 | AS2856 | BTnet UK Regional netwo | Unilever Research Labor
143.252.80.0/24 | AS2856 | BTnet UK Regional netwo | News International (NET
132.146.220.0/24 | AS2856 | BTnet UK Regional netwo | British Telecom Researc
171.30.170.0/24 | AS2856 | BTnet UK Regional netwo | BR Telecommunications L
139.44.13.0/24 | AS2764 | connect.com.au pty ltd | Port of Melbourne Autho
159.142.0.0/18 | AS2714 | GSA_GOV | General Services Admini
159.142.64.0/18 | AS2714 | GSA_GOV | General Services Admini
159.142.128.0/18 | AS2714 | GSA_GOV | General Services Admini
159.142.192.0/18 | AS2714 | GSA_GOV | General Services Admini
144.127.110.0/23 | AS2707 | WEC | Elkem A/S (NET-ELKEM-NO
144.127.112.0/20 | AS2707 | WEC | Elkem A/S (NET-ELKEM-NO
144.127.128.0/19 | AS2707 | WEC | Elkem A/S (NET-ELKEM-NO
144.127.160.0/21 | AS2707 | WEC | Elkem A/S (NET-ELKEM-NO
144.127.168.0/23 | AS2707 | WEC | Elkem A/S (NET-ELKEM-NO
145.248.112.0/24 | AS2706 | HKSUPER | No match for "145.248.0
145.248.155.0/24 | AS2706 | HKSUPER | No match for "145.248.0
145.248.159.0/24 | AS2706 | HKSUPER | No match for "145.248.0
145.248.161.0/24 | AS2706 | HKSUPER | No match for "145.248.0
145.248.165.0/24 | AS2706 | HKSUPER | No match for "145.248.0
145.248.181.0/24 | AS2706 | HKSUPER | No match for "145.248.0
164.53.55.0/24 | AS2706 | HKSUPER | National Australia Bank
134.6.160.0/22 | AS2706 | HKSUPER | Maxtor Corporation (NET
134.6.180.0/24 | AS2706 | HKSUPER | Maxtor Corporation (NET
9.20.0.0/17 | AS2686 | Autonomous System numbe | IBM Corporation (NET-IB
167.181.24.0/24 | AS2685 | IBM Global Network - US | SunTrust Service Corpor
155.39.191.0/24 | AS2685 | IBM Global Network - US | Putnam Investments (NET
155.39.230.0/24 | AS2685 | IBM Global Network - US | Putnam Investments (NET
32.96.0.0/16 | AS2685 | IBM Global Network - US | Norsk Informasjonstekno
32.100.0.0/16 | AS2685 | IBM Global Network - US | Norsk Informasjonstekno
142.212.155.0/24 | AS2652 | Government of Canada Te | Canadian Research Netwo
192.129.3.0/25 | AS2614 | Romanian Education Netw | German National Researc
131.114.192.0/18 | AS2598 | Consiglio Nazionale del | CNR - Istituto CNUCE (N
137.98.96.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.97.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.98.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.99.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.100.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.101.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.102.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.196.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.200.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.203.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.204.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.208.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.209.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.223.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.224.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.225.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.235.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.239.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
137.98.240.0/24 | AS2571 | DHLNET | DHL Systems, Inc. (NET-
141.227.111.0/24 | AS2529 | Demon Internet Ltd | Societe Nationale Elf A
156.114.200.0/24 | AS2529 | Demon Internet Ltd | Baring Securities Limit
160.21.12.0/22 | AS2514 | NTT_PC_communications | Sankyo Seiki Mfg. Co. L
164.113.204.0/22 | AS2495 | KANREN | Kansas Research and Edu
142.5.35.0/24 | AS2493 | iSTAR Internet, Inc. | Transcandada Pipelines
142.245.151.0/24 | AS2493 | iSTAR Internet, Inc. | Royal Bank of Canada (N
142.70.168.0/23 | AS2493 | iSTAR Internet, Inc. | Noranda, Inc. (NET-NORA
142.70.171.0/24 | AS2493 | iSTAR Internet, Inc. | Noranda, Inc. (NET-NORA
162.73.252.0/24 | AS2493 | iSTAR Internet, Inc. | Information Technology
162.73.253.0/24 | AS2493 | iSTAR Internet, Inc. | Information Technology
162.73.254.0/24 | AS2493 | iSTAR Internet, Inc. | Information Technology
155.194.200.0/24 | AS2493 | iSTAR Internet, Inc. | City of Kitchener (NET-
137.15.34.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.35.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.39.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.41.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.43.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.44.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.52.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
137.15.54.0/24 | AS2493 | iSTAR Internet, Inc. | Central Mapping Agency
142.101.32.0/24 | AS2493 | iSTAR Internet, Inc. | Canadian Research Netwo
163.155.120.0/24 | AS2493 | iSTAR Internet, Inc. | Canada Mortgage and Hou
131.232.193.0/24 | AS2493 | iSTAR Internet, Inc. | Athabasca University (N
161.173.243.0/24 | AS2386 | INS-AS | Wal-Mart Stores, Inc. (
145.247.128.0/18 | AS2120 | DAXnet (Tele 3) | No match for "145.247.0
146.192.0.0/17 | AS2119 | Telenor Internett, Norw | Allianse Informasionssy
146.192.128.0/17 | AS2116 | EUnet Norway | Allianse Informasionssy
152.168.3.0/24 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.16.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.20.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.32.0/20 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.48.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.56.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.64.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.72.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.80.0/20 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.128.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.136.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.144.0/20 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.160.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.168.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.180.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.184.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.192.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.200.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.208.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.212.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.216.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.228.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.240.0/21 | AS2056 | AOL-AS | America Online, Inc (NE
152.168.248.0/22 | AS2056 | AOL-AS | America Online, Inc (NE
136.198.82.0/24 | AS2042 | MIMOS BHD | Victor Company of Japan
144.199.161.0/24 | AS2042 | MIMOS BHD | Sarawak Shell Berhad (N
157.151.64.0/19 | AS2041 | CRL-GATE | Information Access Tech
169.24.186.0/24 | AS2019 | JP MORGAN | J.P. Morgan & Co. (NETB
161.231.0.0/21 | AS2011 | WACHOVIA | Wachovia Operational Se
161.231.8.0/21 | AS2011 | WACHOVIA | Wachovia Operational Se
161.231.248.0/21 | AS2011 | WACHOVIA | Wachovia Operational Se
164.52.249.0/24 | AS1982 | Northwest Nexus, Inc. | Associated Grocers, Inc
147.169.201.0/24 | AS1913 | DLA4 | HQ, 5th Signal Command
147.169.208.0/24 | AS1913 | DLA4 | HQ, 5th Signal Command
159.77.149.0/24 | AS1913 | DLA4 | DISA-EUROPE/DEKC (NET-D
153.98.0.0/17 | AS1891 | EUnet Belgium AS | Eurocontrol Karlsruhe (
157.25.64.0/23 | AS1887 | NASK | Advanced Technology Man
161.51.224.0/20 | AS1849 | UUNET UK (PIPEX, Public | The M.W. Kellogg Compan
148.176.225.0/24 | AS1849 | UUNET UK (PIPEX, Public | ScottishPower (NET-SCOT
137.33.165.0/24 | AS1849 | UUNET UK (PIPEX, Public | Kemira Group (HKIISA-HS
137.33.166.0/24 | AS1849 | UUNET UK (PIPEX, Public | Kemira Group (HKIISA-HS
159.245.84.0/22 | AS1849 | UUNET UK (PIPEX, Public | GEC ALSTHOM NV (NET-GEC
159.245.104.0/22 | AS1849 | UUNET UK (PIPEX, Public | GEC ALSTHOM NV (NET-GEC
170.194.51.0/24 | AS1849 | UUNET UK (PIPEX, Public | Deloitte Touche Tohmats
137.227.128.0/17 | AS1842 | USGS-AS | US Department of the In
150.185.128.0/18 | AS1800 | ICM-Atlantic | Consejo Nacional de Inv
150.185.192.0/18 | AS1800 | ICM-Atlantic | Consejo Nacional de Inv
169.130.31.0/24 | AS1785 | NYSERNet Backbone | Sprint, Business Servic
169.130.51.0/24 | AS1785 | NYSERNet Backbone | Sprint, Business Servic
169.130.54.0/24 | AS1785 | NYSERNet Backbone | Sprint, Business Servic
149.212.64.0/20 | AS1759 | Telecom Finland iNET tr | Siemens-Nixdorf Informa
9.2.0.0/16 | AS1747 | IBM Watson, Yorktown He | IBM Corporation (NET-IB
137.33.254.0/24 | AS1741 | FUNET autonomous system | Kemira Group (HKIISA-HS
166.50.243.0/24 | AS1691 | BCTEL | MCI Telecommunications
166.50.244.0/22 | AS1691 | BCTEL | MCI Telecommunications
166.50.248.0/23 | AS1691 | BCTEL | MCI Telecommunications
166.50.250.0/24 | AS1691 | BCTEL | MCI Telecommunications
152.175.0.0/17 | AS1668 | AOL-PRIMEHOST | America Online, Inc (NE
152.164.0.0/21 | AS1667 | ANS-DC2 | ANS CO+RE Systems, Inc.
157.184.150.0/24 | AS1330 | ANS St. Louis - DNSS 83 | Lexmark International I
149.112.246.0/24 | AS1327 | ANS Washington D.C. - D | US Robotics (NET-USR-1)
149.112.247.0/24 | AS1327 | ANS Washington D.C. - D | US Robotics (NET-USR-1)
149.112.248.0/24 | AS1327 | ANS Washington D.C. - D | US Robotics (NET-USR-1)
149.112.249.0/24 | AS1327 | ANS Washington D.C. - D | US Robotics (NET-USR-1)
147.225.190.0/24 | AS1324 | ANS New York City - DNS | ANS Inc. (NET-ANSNET)
149.112.96.0/24 | AS1323 | ANS Chicago - DNSS 27 | US Robotics (NET-USR-1)
149.112.150.0/24 | AS1323 | ANS Chicago - DNSS 27 | US Robotics (NET-USR-1)
152.182.0.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.4.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.8.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.0.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.4.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.8.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.12.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.16.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.20.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.24.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.28.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.32.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.36.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.38.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.40.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.44.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.48.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.52.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.56.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.60.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.64.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.66.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.68.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.70.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.72.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.76.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.80.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.84.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.86.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.88.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.92.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.94.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.96.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.12.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.16.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.20.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.24.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.28.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.32.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.36.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.38.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.40.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.44.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.48.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.52.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.56.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.60.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.64.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.66.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.68.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.70.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.72.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.76.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.80.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.84.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.86.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.88.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.92.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.94.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.96.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.100.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.104.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.106.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.108.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.110.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.112.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.116.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.118.0/24 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.120.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.124.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.128.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.132.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.136.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.182.148.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.192.0/21 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.200.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.208.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.212.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.220.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.224.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.228.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.248.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.100.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.104.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.106.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.108.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.110.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.112.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.116.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.118.0/24 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.120.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.124.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.128.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.132.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.136.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.190.148.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.192.0/21 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.200.0/22 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.208.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.212.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.220.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.224.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.228.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.240.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.191.248.0/23 | AS1323 | ANS Chicago - DNSS 27 | ANS CO+RE Systems, Inc.
152.183.240.0/23 | AS1323 | ANS Chicago - DNSS 27 | *
160.104.128.0/17 | AS1290 | PSINet UK Ltd. | Tadpole Technology, Inc
192.151.12.171/32 | AS1290 | PSINet UK Ltd. | Hewlett Packard (NET-HP
145.227.75.192/26 | AS1290 | PSINet UK Ltd. | CFM Network Services (N
134.95.18.0/28 | AS1273 | ECRC Network | University of Cologne R
193.23.5.0/28 | AS1273 | ECRC Network | European Regional Inter
193.23.5.16/28 | AS1273 | ECRC Network | European Regional Inter
193.23.5.32/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.48/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.64/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.68/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.72/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.76/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.80/30 | AS1273 | ECRC Network | European Regional Inter
193.23.5.96/28 | AS1273 | ECRC Network | European Regional Inter
193.23.5.128/28 | AS1273 | ECRC Network | European Regional Inter
193.23.5.144/28 | AS1273 | ECRC Network | European Regional Inter
193.23.5.160/28 | AS1273 | ECRC Network | European Regional Inter
193.23.5.208/28 | AS1273 | ECRC Network | European Regional Inter
193.189.231.1/32 | AS1273 | ECRC Network | European Regional Inter
194.152.40.224/28 | AS1273 | ECRC Network | European Regional Inter
193.218.126.229/32 | AS1273 | ECRC Network | European Regional Inter
141.1.13.0/24 | AS1273 | ECRC Network | European Computer Resea
192.121.158.108/30 | AS1273 | ECRC Network | Ebone Consortium (NET-A
146.75.253.0/24 | AS1257 | SWIPnet Swedish IP Netw | Nexus AB (NET-COMBITECH
147.27.1.0/24 | AS1241 | FORTHnet | Technical University of
147.27.2.0/24 | AS1241 | FORTHnet | Technical University of
147.27.5.0/24 | AS1241 | FORTHnet | Technical University of
147.27.15.0/24 | AS1241 | FORTHnet | Technical University of
147.27.20.0/24 | AS1241 | FORTHnet | Technical University of
158.59.128.0/17 | AS1239 | SprintLink Backbone | Arlington County Govern
163.180.0.0/18 | AS1237 | SERI Autonomous System | Kyunghee Univ. Computer
163.180.64.0/19 | AS1237 | SERI Autonomous System | Kyunghee Univ. Computer
164.112.249.0/24 | AS1221 | AARNET-AS | Queensland Police Servi
139.163.18.0/24 | AS1221 | AARNET-AS | QANTAS Airways Limited
139.163.82.0/24 | AS1221 | AARNET-AS | QANTAS Airways Limited
159.99.0.0/17 | AS1221 | AARNET-AS | Honeywell Ltd Australia
159.99.128.0/19 | AS1221 | AARNET-AS | Honeywell Ltd Australia
159.99.160.0/21 | AS1221 | AARNET-AS | Honeywell Ltd Australia
158.155.24.0/22 | AS1221 | AARNET-AS | Computer Generation (NE
163.233.3.0/24 | AS1221 | AARNET-AS | Comcare (NET-COMCARE)
138.79.0.0/17 | AS1221 | AARNET-AS | CP Software (NET-CPNET)
144.55.12.0/24 | AS1221 | AARNET-AS | Australian Securities C
165.228.10.0/24 | AS1221 | AARNET-AS | Australian Academic and
161.50.48.0/24 | AS1221 | AARNET-AS | ACT Institute of TAFE (
162.27.201.0/24 | AS1136 | Unisource Internet Serv | R. R. Donnelley & Sons
162.27.202.0/24 | AS1136 | Unisource Internet Serv | R. R. Donnelley & Sons
139.162.128.0/17 | AS1136 | Unisource Internet Serv | Nedlloyd Computer Servi
163.175.152.0/21 | AS1136 | Unisource Internet Serv | CCN Automatisering (NET
140.174.162.0/23 | AS10368 | DNAI | The Little Garden (NET-
129.81.10.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.18.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.30.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.34.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.38.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.40.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.48.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.58.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.66.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.174.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.184.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.186.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.200.0/24 | AS10349 | TULANE | Tulane University (NET-
129.81.225.0/24 | AS10349 | TULANE | Tulane University (NET-
167.216.0.0/17 | AS10348 | HTDC-NET | Manoa Innovation Center
155.10.39.0/24 | AS852 | AGT Advance Communicati | HUSKY OIL (NET-HUSKY)
142.57.1.0/24 | AS816 | UUNET Canada (ASN-UUNET | The Law Society of Uppe
159.254.164.0/24 | AS816 | UUNET Canada (ASN-UUNET | ROTHMANS INTERNATIONAL
142.218.30.0/24 | AS816 | UUNET Canada (ASN-UUNET | George Weston Ltd. (NET
142.77.1.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.11.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.15.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.27.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.31.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.34.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.39.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.40.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.70.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.80.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.100.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.180.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.181.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.203.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
142.77.246.0/24 | AS813 | UUNET Canada (ASN-UUNET | UUNET Canada Incorporat
163.1.0.0/24 | AS786 | The JANET IP Service | Oxford University Compu
160.5.0.0/24 | AS786 | The JANET IP Service | Computer Centre (Centra
149.20.64.0/24 | AS701 | Alternet | Vixie Enterprises (NET-
168.86.1.0/24 | AS701 | Alternet | United Artists Theater
160.104.0.0/17 | AS701 | Alternet | Tadpole Technology, Inc
141.162.101.0/24 | AS701 | Alternet | Susquehanna Investment
134.6.77.0/24 | AS701 | Alternet | Maxtor Corporation (NET
158.118.10.0/24 | AS701 | Alternet | Matsushita Electric Wor
158.118.51.0/24 | AS701 | Alternet | Matsushita Electric Wor
167.152.251.0/24 | AS701 | Alternet | EMI Communications Corp
134.33.100.0/24 | AS701 | Alternet | Codex Corporation (NET-
164.218.95.0/24 | AS701 | Alternet | Bureau of Naval Personn
155.134.60.0/24 | AS701 | Alternet | Best Foods Baking Group
170.253.124.0/23 | AS701 | Alternet | Arthur Andersen & Co.,
155.7.0.0/19 | AS701 | Alternet | American Forces Informa
155.7.40.0/23 | AS701 | Alternet | American Forces Informa
130.188.2.0/24 | AS565 | VTT autonomous system | Technical Research Cent
130.188.170.0/24 | AS565 | VTT autonomous system | Technical Research Cent
130.188.250.0/24 | AS565 | VTT autonomous system | Technical Research Cent
53.64.4.0/22 | AS517 | Xlink | cap debis ccs (NET-DB-N
153.96.80.0/21 | AS517 | Xlink | Fraunhofer Institut fue
153.96.92.0/24 | AS517 | Xlink | Fraunhofer Institut fue
153.96.230.0/24 | AS517 | Xlink | Fraunhofer Institut fue
143.93.32.0/19 | AS517 | Xlink | Fachhochschule Rheinlan
153.98.128.0/17 | AS517 | Xlink | Eurocontrol Karlsruhe (
129.181.208.0/21 | AS517 | Xlink | Bull Louveciennes (NET-
129.181.216.0/22 | AS517 | Xlink | Bull Louveciennes (NET-
128.102.32.0/20 | AS297 | NASA Internet | NASA Ames Research Cent
38.1.2.0/24 | AS174 | Performance Systems Int | Performance Systems Int
38.1.3.0/24 | AS174 | Performance Systems Int | Performance Systems Int
204.6.106.0/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.106.4/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.117.0/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.119.0/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.119.8/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.119.12/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.119.16/30 | AS174 | Performance Systems Int | Performance Systems Int
204.6.119.36/30 | AS174 | Performance Systems Int | Performance Systems Int
128.145.228.0/24 | AS174 | Performance Systems Int | Performance Systems Int
199.99.247.32/27 | AS174 | Performance Systems Int | Performance Systems Int
149.127.6.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.35.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.37.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.39.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.40.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.41.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.42.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.43.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.44.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.45.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.46.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.47.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.48.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.106.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.137.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.139.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.140.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
149.127.141.0/24 | AS174 | Performance Systems Int | PSI (NET-PSINET-B-127)
206.157.77.168/30 | AS174 | Performance Systems Int | MCI Internet Services (
128.111.30.0/23 | AS131 | University of Californi | University of Californi
128.111.32.0/23 | AS131 | University of Californi | University of Californi
128.111.243.0/24 | AS131 | University of Californi | University of Californi
128.111.244.0/23 | AS131 | University of Californi | University of Californi
162.121.244.0/22 | AS114 | Sesquinet Primary AS | St. Luke's Episcopal Ho
129.207.10.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.17.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.25.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.30.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.32.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.35.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.37.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.40.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.43.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.44.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.45.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.47.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.50.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.55.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.60.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.63.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.65.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.70.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.75.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.80.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.81.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.82.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.85.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.87.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.90.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.93.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.100.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.105.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.106.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.107.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.110.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.115.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.123.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.125.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.133.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.145.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.146.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.200.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.210.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
129.207.215.0/24 | AS114 | Sesquinet Primary AS | Prairie View A&M Univer
207.227.0.216/30 | AS38 | University of Illinois | NAP.NET, LLC (NETBLK-CN
166.4.174.0/26 | AS1 | BBNPLANET | US Forest Service (NETB
161.38.1.0/24 | AS1 | BBNPLANET | The Art Institutes Inte
161.38.27.0/24 | AS1 | BBNPLANET | The Art Institutes Inte
161.38.37.0/24 | AS1 | BBNPLANET | The Art Institutes Inte
161.38.57.0/24 | AS1 | BBNPLANET | The Art Institutes Inte
192.221.5.240/29 | AS1 | BBNPLANET | SURAnet (NETBLK-SURA-SU
192.239.22.0/29 | AS1 | BBNPLANET | SURAnet (NETBLK-NET-SUR
130.105.100.0/24 | AS1 | BBNPLANET | Open Software Foundatio
189.93.55.0/24 | AS1 | BBNPLANET | No match for "189.93.0.
170.11.36.0/22 | AS1 | BBNPLANET | Minnesota Mutual Life I
161.223.220.0/22 | AS1 | BBNPLANET | Indian Health Service (
161.223.224.0/24 | AS1 | BBNPLANET | Indian Health Service (
142.218.120.0/24 | AS1 | BBNPLANET | George Weston Ltd. (NET
163.244.98.0/24 | AS1 | BBNPLANET | Dell Computer Corporati
163.244.100.0/24 | AS1 | BBNPLANET | Dell Computer Corporati
159.87.34.0/24 | AS1 | BBNPLANET | Arizona State Governmen
162.42.128.0/23 | AS1 | BBNPLANET | Arizona Public Service
162.42.130.0/24 | AS1 | BBNPLANET | Arizona Public Service
162.42.133.0/24 | AS1 | BBNPLANET | Arizona Public Service
162.42.135.0/24 | AS1 | BBNPLANET | Arizona Public Service
162.42.136.0/21 | AS1 | BBNPLANET | Arizona Public Service
162.42.144.0/20 | AS1 | BBNPLANET | Arizona Public Service
162.42.160.0/19 | AS1 | BBNPLANET | Arizona Public Service
162.42.192.0/24 | AS1 | BBNPLANET | Arizona Public Service
162.42.241.0/24 | AS1 | BBNPLANET | Arizona Public Service
162.42.242.0/23 | AS1 | BBNPLANET | Arizona Public Service
162.42.244.0/22 | AS1 | BBNPLANET | Arizona Public Service
162.42.248.0/22 | AS1 | BBNPLANET | Arizona Public Service
162.42.252.0/23 | AS1 | BBNPLANET | Arizona Public Service
162.42.254.0/24 | AS1 | BBNPLANET | Arizona Public Service
135.16.150.0/24 | AS1 | BBNPLANET | AT&T ITS (NET-ATT-135-1
1
0
Hello all,
I would appreciate any help with the following.
First, what problems arise in a network that routes without information about
the sender? In other words, imagine that the IP header did not contain the
source address - what problems would this raise? Are optimal routing,
security, billing, traceability, network management, etc., suddenly
intractable?
Second, to what degree do you believe Internet traffic exhibits
self-similarity, and how does this change with varying levels of traffic
aggregation? I have read papers from Bellcore and others suggesting that
no matter the level of aggregation (be it a single Internet user or a major
NAP), Internet traffic exhibits high degrees of self-similarity - but more
recent research does not seem to agree with this.
I am sorry if this is an inappropriate forum for the topics I have raised,
however after reading through this list for some time it is apparent that we
have assembled here a good deal of real-world experience, something I believe
is requisite for a meaningful discussion of real-world network issues.
Very interested to hear what you have to say,
Nate Boyd
MIT Laboratory for Computer Science
3
2
Test....
1
0
Sean M. Doran <smd(a)clock.org> wrote:
>How does a security policy of "turn off LSR handling" translate
>into anything other than an admission of completely
>missing the point that one should never ever ever ever
>trust any data based soley on where the network leads one
>to believe it has come from?
Hey, LSR is useful for all kinds of very interesting
denial of service attacks. A clever combination of LSR and
forged source addresses may make the attack virtually
untraceable.
>Turning off a useful but under-implemented network service...
Useful for what? traceroute -g is the _only_ useful
application for LSR. Disabling LSR and adding an application
level service for tracing back would be just as useful.
>Quoting Radia Perlman:
> "The goal is to design a network that will guarantee that
> a packet transmitted between two nonfaulty end systems A
> and B will have a high probability of being delivered,
> provided that at least one path consists of nonfaulty
> components connects the two end systems. [...] The
> network layer makes no attempt to keep conversations
> private. If privacy is necessary, encryption must be
> done at a higher layer. Also, the network layer need not
> certify data that it delivers. For instance, it is
> possible for some malicious node C to generate data, get
> it delivered to B, and claim that the data was from A.
> It is up to the higher layer in B to differentiate
> between corrupted or counterfeit data and real data,
> using known cryptographic techniques".
Encryption is an overkill for 99% of all applications. Disabling
LSR and doing SA filtering can take care of _most_ security
problems. And it is computationally cheap.
>The proposal to turn off LSRR is a tremendously incomplete
>proposal to have the network certify the validity of the
>origin, at the cost of some additional utility and
>robustness from the point of view of end systems.
I would wholeheartedly agree with that proposal, if some
useful substitute for traceroute -g is provided.
This will not make the network absolutely secure (there ain't
no such thing as absolute security), but it definitely will
make it _more_ secure.
>In any event I don't think that disabling LSRR in any way
>makes networking equipment more robust, and that is what
>you appear to be arguing.
To make equipment more robust you may want to use gold-plated
connectors, have redundant power, etc. I love playing
dumb :)
>> I will note that its none of someone else's business what
>> one's internal topology looks like.
>Sure it is. Or rather, it is useful to be able to infer a
>number of path characteristics between two communicating
>endpoints for such things as flow control and route
>selection.
That should be a matter of preference. Knowing network
topology of a large corporation can give tremendous amounts
of information about the corporation's structure and
give clues to what projects the company's working on.
Connection analysis is an old and venerable intelligence tool.
>Networks and computers exist to offer services to users,
>and obscuring information that makes service use or
>selection difficult is a poor policy.
Hey. What information to disclose should be a voluntary
choice.
>How does LSR reduce network availability except in the
>case of implementations that slow-switch option-ridden IP
>datagrams and have no equivalent of SPD, or intermediate
>systems (gee, it's OSIspeek day, isn't it?) that don't
>use reasonable means to authenticate and keep private
>things like routing information exchanges or management sessions{
How'd you like to get a stream of nasty bogons aimed at
your router(s) and arriving from virtually all directions?
There's a number of ways to kill ciscos with pretty low-rate
streams.
--vadim
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In article <ytafhal5xz.fsf(a)cesium.clock.org>,
"Sean M. Doran" <smd(a)clock.org> wrote:
> Why? ping and traceroute are poor predictors of locality
> and available bandwidth between the originator and target
> of those tools.
You can get an interesting set of data by sending a few rounds of
pings of different sizes. Make a scatterplot of ping packet size
vs. delay and find the line that fits the data; its slope represents
the inverse of available bandwidth and the y-intercept represents the
raw latency. Standard deviation gives you an idea of congestion.
Is it crude? Yes, but I don't know of anything better. Is it ugly?
Yes, but no uglier than traceroute.
This isn't my idea; I saw it in "bing".
Once you have a metric coded up, you can have each potential data
source measure the quality of their connectivity to the endpoint.
After they have agreed amongst themselves (probably via an
intermediary server) which server is best they can cause the session
to be moved to the most probably optimal server.
--
Shields, CrossLink.
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Avi Freedman <freedman(a)netaxs.com> writes:
> The cyclic stuff in News recently has hammered home that the search
> for elegance pays off. I "initially" solved the problem of having
> multiple machines with the same IP by postulating IP-stack hackery
> involving forwarding any packets that come in for sockets that
> don't exist to a central database-forwarder machine that keeps track
> of all open tcp sessions on all replicated machines, but it turns
> out that there are some much easier non-stack-hackery-mandatory
> solutions.
Your approach also is not a neat solution for two further
reasons. Firstly, it requires maintaining connection
state for all connections on a central repository, and
secondly, it requires that your network be stable at the
point when a connection needs to migrate.
You should be able to deal with the case that during the
lifetime of a TCP session something causes traffic that
was hitting site A suddenly arrive at similarly-numbered
site B at a time when connectivity within your network is
unstable. (This likely can be done with tunnels,
following the NAT approach, if synchronization is between
things located at the edges of your network, rather than
in a star pattern from something inside your network).
You should also avoid scaling limits inherent in dumping
lots of traffic at some central host rather than doing
content-driven fail-over checkpointing for bulk data
transfers from "static" content.
Sean.
P.S.: do you go about guaranteeing that you have unique
connection "names" across all your
simliarly-numbered hosts?
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Avi Freedman <freedman(a)netaxs.com> writes:
> We at Net Access have figured out a way (we believe) to get
> around the stability-of-routing issue for already-established
> TCP sessions in the above approach (multiple machines with the
> same IP externally, plus an internally different IP, each
> running gated to announce their /32(s) to your IGP) -
> hint: a question I asked on NANOG a few days back -
> And Alec Peterson (now of Erols) has figured out an even
> arguably slicker way to do it.
>
> I'll see if Merit wants to have Alec and I do a presentation
> on the methods @ NANOG.
If you have neatly solved the problem of undetectable
route flutter, whereby something distant from your
similarly-numbered machines causes datagrams destined for
those machines to flip among several of them at intervals
(particularly relatively short intervals) then I think
that would be worthy of a talk almost anywhere.
Moreover, if you can generalize the "slick" solution into
moving traffic by choice from one of your similarly-
numbered machines to another (thinking of reboots &
backups, server-driven load balancing and the like)
independent of service (although you could require it to
be a NAT-friendly service, I guess) then that might make a
trip to Phoenix worthwhile.
Sean.
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