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Fwd: The Internet at 35: Still evolving
by Fergie (Paul Ferguson) 29 Aug '04

29 Aug '04

"Thirty-five years after computer scientists at UCLA linked two bulky computers using a 15-foot gray cable, testing a new way to exchange data over networks, what would ultimately become the Internet remains a work in progress." http://www.cnn.com/2004/TECH/internet/08/29/internet.birthday.ap/index.html - ferg -- "Fergie", a.k.a. Paul Ferguson Engineering Architecture for the Internet fergdawg(a)netzero.net or fergdawg(a)sbcglobal.net

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RE: optics pricing (Re: Weird GigE Media Converter Behavior)
by Dickson, Brian 29 Aug '04

29 Aug '04

Aha. It appears I was correct in framing my knowledge as out-of-date. :-) It looks like the technology *has* advanced, and that 10GE on MMF or SMF, single-channel, is what the current state of the art is, and at the $2k-3k unit price. In which case, yes, not offering this (and not building cards to use cheaper and/or more flexible component, ie XENPAK), is likely going to be a huge mistake Cisco. Unless they bite the bullet and do whatever it takes to make xenpak-based 10G cards, on at least some flavour of card on any 10G platform. (I don't really expect a xenpak-compatible version of soho routers to show up, although it *would* be nice as an option on most of their switch families.) So, I sit corrected. ;-) BTW, thanks for pointing this out; it's nice to see that things haven't completely stagnated in the last couple of years. Brian P.S. At that price level, I actually *do* expect another Swede will have, or already has, one or more of this class of box at home. In his WC, even. ;-) P.P.S. He's not crazy. But he *should* have a t-shirt that says "I'm with STUPI". ;-) -----Original Message----- From: Mikael Abrahamsson [mailto:swmike@swm.pp.se] Sent: Sunday, August 29, 2004 12:08 PM To: Dickson, Brian Cc: nanog(a)merit.edu Subject: Re: optics pricing (Re: Weird GigE Media Converter Behavior) Then why can I purchase 10km 10GE Xenpaks directly from the manufacturer for under $2000? > On the other hand, it'd be nice to see a copper 10GBIC, even if its > max cable length were a few metres. ;-) There is one. It's called CX4 and has a reach of 15 meters. Cisco sold it for $600 list price at first but it has now disappeared from the price list. I don't know why. http://www.cisco.com/en/US/products/hw/modules/ps4835/products_data_sheet091 86a008007cd00.html -- Mikael Abrahamsson email: swmike(a)swm.pp.se

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RE: BGP Homing Question
by Michel Py 28 Aug '04

28 Aug '04

>>> Patrick W Gilmore wrote: >>> It is your netblock, you get to use it as needed. >> Michel Py wrote: >> This is not a good reason; it might be a good >> excuse, but not a good reason. > Really? So if I have a /20, you are saying I > cannot use it as I need to use it? No. It's yours you can use it any way you want. What I'm saying is that nor because it's yours neither because you can use it anyway you want make you a good netizen nor guarantees any results. > You do not need to tunnel at all if your two upstreams trade > downstream routes (e.g. "peer"), and the US upstream does not > filter small prefixes from their peers. Indeed, but how can you guarantee it? SNAFUs do happen, for a number of reasons you can't control. Tunneling provides some resiliency when things which are not supposed to happen do in fact pop up from time to time. > As I said in the first post, this is much more common than > the alternative, so chances are it will "just work". No argument here. Michel.

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RE: BGP Homing Question
by Michel Py 28 Aug '04

28 Aug '04

> Patrick W Gilmore wrote: > There is zero "bad citizenry" in this, and don't > let anyone tell you differently. I agree, but not for the reason below: > It is your netblock, you get to use it as needed. This is not a good reason; it might be a good excuse, but not a good reason. > This is much better than getting another /20 for > an EU site that only needs a /24. However, what's above _is_ a good reason. In terms of the size of the routing table, it does not really matter which two prefixes you announce, as the simpl(istic) way to see it is that they take two prefixes anyway. In terms of conservation of the address space it does matter, as announcing a subnet of your ARIN block in Europe is actually being a good netizen because it does not waste an ARIN netblock. > Also, filtering will not be an issue, if you are careful. > Anyone who does not hear the /24 will hear the /20. Rick, you do need to tunnel the EU block from your US location back to your EU location, for people that are behind a filter that masks your /24. It does not happen often but it does happen. This leads to suboptimal asymmetric traffic, double whammy in terms of bandwidth (EU-bound traffic received by the US site from people that see the /20 and not the /24 that has to be re-sent back to EU over the tunnel) and interesting issues with stateful firewalls though. Bottom line is: what Rick is suggesting is actually The Right Thing (tm) to do; the bad netizen would embellish the truth and request a /20 from RIPE instead, as Patrick mentioned. Technically speaking, it is sad to say that the bad thing is more bullet-proof than the right thing though :-( no filtering issues. It's not nearly as bad as it was a few years ago though, as people have finally given up on trying to get a full BGP feed on a 3640 with 128 Megs of RAM. Michel.

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RE: optics pricing (Re: Weird GigE Media Converter Behavior)
by Michel Py 28 Aug '04

28 Aug '04

> Deepak Jain wrote: > One could argue that this public & private chaffing is what > precipitates the competition that alleviates the condition. > If another vendor doesn't realize there is demand... Indeed; I'll even give an idea for free: 4 port OC192 IR $1030k 4 port OC192 VSR - $330k ------ = $700k Someone cares to manufacture a 4-port VSR <-> IR converter for less than $700k list? or a VSR <-> LR for less than $1M? Michel.

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RE: optics pricing (Re: Weird GigE Media Converter Behavior)
by Michel Py 28 Aug '04

28 Aug '04

> Mikael Abrahamsson wrote: > 4 port OC192 IR $1030k > Is there anyone who can justify this pricing > with anything else than "because we can?" That's a heck of a good reason! Any for-profit business tries hard to position themselves where they could name their price. This pricing is consistent with the guesses/predictions that were floating at the time of the product announcement; there was some political will to have a million bucks line card (otherwise they would have priced it at $999,950 ;-). This is Rolls-Royce marketing: if it's so darn pricey it's because it's so darn good. Like Rolls-Royce cars, the ones that buy them are typically not the ones that drive them, so technical arguments tend to become irrelevant. Michel.

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Re: BGP Homing Question
by babylon＠egenius.org 27 Aug '04

27 Aug '04

No it was because we (Sprint, where I worked at that time) still felt that it was valuable. The change happened a couple of months after I left. From what I was told when the change happened, it was decided that it was no longer more important to do, then the pain it caused, because of massive increases in router memory, and the ability to do prefix-filters to clamp down on large eruptions. jon > > Out of the ether, babylon(a)egenius.org spewed forth the following bitstream: > > > Actually Sprint continued filtering for 2 years after Sean left. > > But was that because they could not figure out how to turn it off? > > AlanC > -- > A plot, if there is to be one, must be a secret. A secret that, if | > we only knew it, would dispel our frustration, lead us to salvation; | TSILB > or else the knowing of it in itself would be salvation. | >

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Re: time to bury nethead versus bellhead polemics
by Joe Hamelin 27 Aug '04

27 Aug '04

> "netheaded" was seen as the 'nirvana' to which the Internet would > guide telecommunications. And I've been netheaded since '95. ;) -- Joe Hamelin <joe(a)nethead.com/.org/.us/.org.uk> Edmonds, WA, US

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RE: On the back of other security posts (well some over a year ag o now)....
by Hosman, Ross 27 Aug '04

27 Aug '04

Wow... Glad to see we know the real reason foonet got raided. -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu]On Behalf Of Matthew Sullivan Sent: Friday, August 27, 2004 4:41 AM To: nanog Subject: On the back of other security posts (well some over a year ago now).... Need I say more...? http://www.securityfocus.com/news/9411 My thanks to those who listened and helped me. My thanks to those who helped Spamhaus, and my thanks to anyone else who got involved with the whole deal. / Mat

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Weekly Routing Table Report
by Routing Table Analysis 27 Aug '04

27 Aug '04

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 28 Aug, 2004 Analysis Summary ---------------- BGP routing table entries examined: 144261 Prefixes after maximum aggregation: 85919 Unique aggregates announced to Internet: 69594 Total ASes present in the Internet Routing Table: 17870 Origin-only ASes present in the Internet Routing Table: 15497 Origin ASes announcing only one prefix: 7274 Transit ASes present in the Internet Routing Table: 2373 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 22 Prefixes from unregistered ASNs in the Routing Table: 30 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 16 Number of addresses announced to Internet: 1331425836 Equivalent to 79 /8s, 91 /16s and 242 /24s Percentage of available address space announced: 35.9 Percentage of allocated address space announced: 58.1 Percentage of available address space allocated: 61.9 Total number of prefixes smaller than registry allocations: 65356 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 27805 Total APNIC prefixes after maximum aggregation: 13969 Prefixes being announced from the APNIC address blocks: 26034 Unique aggregates announced from the APNIC address blocks: 14136 APNIC Region origin ASes present in the Internet Routing Table: 2114 APNIC Region origin ASes announcing only one prefix: 627 APNIC Region transit ASes present in the Internet Routing Table: 329 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 158085760 Equivalent to 9 /8s, 108 /16s and 50 /24s Percentage of available APNIC address space announced: 72.1 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 82155 Total ARIN prefixes after maximum aggregation: 50156 Prefixes being announced from the ARIN address blocks: 63556 Unique aggregates announced from the ARIN address blocks: 22488 ARIN Region origin ASes present in the Internet Routing Table: 9438 ARIN Region origin ASes announcing only one prefix: 3399 ARIN Region transit ASes present in the Internet Routing Table: 924 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 230906400 Equivalent to 13 /8s, 195 /16s and 90 /24s Percentage of available ARIN address space announced: 68.8 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647,29695-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 26719 Total RIPE prefixes after maximum aggregation: 18867 Prefixes being announced from the RIPE address blocks: 23513 Unique aggregates announced from the RIPE address blocks: 15669 RIPE Region origin ASes present in the Internet Routing Table: 5771 RIPE Region origin ASes announcing only one prefix: 3110 RIPE Region transit ASes present in the Internet Routing Table: 995 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 169823552 Equivalent to 10 /8s, 31 /16s and 77 /24s Percentage of available RIPE address space announced: 59.5 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6334 Total LACNIC prefixes after maximum aggregation: 2245 Prefixes being announced from the LACNIC address blocks: 6118 Unique aggregates announced from the LACNIC address blocks: 3518 LACNIC Region origin ASes present in the Internet Routing Table: 389 LACNIC Region origin ASes announcing only one prefix: 117 LACNIC Region transit ASes present in the Internet Routing Table: 78 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 15772672 Equivalent to 0 /8s, 240 /16s and 172 /24s Percentage of available LACNIC address space announced: 47.0 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1218 Total AfriNIC prefixes after maximum aggregation: 682 Prefixes being announced from the AfriNIC address blocks: 823 Unique aggregates announced from the AfriNIC address blocks: 661 AfriNIC Region origin ASes present in the Internet Routing Table: 91 AfriNIC Region origin ASes announcing only one prefix: 21 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 1994496 Equivalent to 0 /8s, 30 /16s and 111 /24s Percentage of available AfriNIC address space announced: 11.9 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 833 4193 156 Data Communications Bureau 1221 810 1184 584 Telstra Pty Ltd 4766 563 2897 265 Korea Internet Exchange for " 9583 529 41 106 Satyam Infoway Ltd., 4755 369 133 50 Videsh Sanchar Nigam Ltd. Aut 9929 363 162 34 China Netcom Corp. 9443 355 70 81 Primus Telecommunications 2907 353 1840 327 SINET Japan 17676 347 5164 39 XTAGE CORPORATION 17557 321 23 158 Pakistan Telecom 703 315 342 243 UUNET 2764 286 274 233 connect.com.au pty ltd 7474 263 268 200 Optus Communications Pty Ltd 9942 239 73 130 COMindico Australia 4802 234 28 143 Wantree Development 9800 225 369 63 CHINA UNICOM 9498 221 49 49 BHARTI BT INTERNET LTD. 4837 206 2262 107 chinanet IDC center beijing n 10036 202 18 183 C&M Communication Co. Ltd. 9304 177 160 24 Hutchison Telecom (HK) ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1396 6757 963 AT&T WorldNet Services 701 1275 8423 919 UUNET Technologies, Inc. 1239 931 2857 621 Sprint 4323 777 631 215 Time Warner Telecom 18566 741 208 6 Covad Communications 6197 712 362 340 BellSouth Network Solutions, 6347 662 330 122 SAVVIS Communications Corpora 209 620 3430 499 Qwest 721 619 20994 289 DLA Systems Automation Center 20115 583 388 300 Charter Communications 3356 571 10938 440 Level 3 Communications, LLC 852 510 1141 398 Telus Advanced Communications 7843 490 675 104 Adelphia Corp. 6198 457 401 207 BellSouth Network Solutions, 3561 456 2389 346 Cable & Wireless USA 7132 434 8030 376 SBC Internet Services 705 428 163 270 UUNET Technologies, Inc. 2386 408 519 230 AT&T Data Communications Serv 4355 388 323 99 EarthLink, Inc. 5668 388 87 18 Century Telephone RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 657 2020 544 UUNET - Commercial IP service 3320 301 2470 238 Deutsche Telekom AG 3301 283 1098 273 TeliaNet Sweden 8220 275 445 262 COLT Internet - International 680 244 2025 239 DFN-IP service G-WiN 13083 217 51 8 Mannesmann Datenverarbeitung 3246 215 473 212 Song Networks 1257 214 747 183 SWIPnet Swedish IP Network 8708 202 113 181 Romania Data Systems S.A. 5515 199 842 145 Sonera Solution Autonomous Sy 3215 182 876 76 France Telecom Transpac 786 177 1794 177 The JANET IP Service 5400 154 210 125 BT Ignite European Backbone 6746 154 29 131 Dynamic Network Technologies, 25186 153 154 109 France Telecom Transpac's Tra 719 151 288 102 LANLINK autonomous system 3269 145 1195 66 TELECOM ITALIA 8866 134 15 15 Bulgarian Telecommunication C 3303 130 609 129 Swisscom Ltd 12302 127 18 33 MobiFon S.A. LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 11172 357 100 54 Servicios Alestra S.A de C.V 6140 333 137 63 ImpSat 8151 284 391 130 UniNet S.A. de C.V. 16814 212 13 7 NSS, S.A. 6147 186 86 19 Telefonica Del Peru 11664 157 11 20 Keytech SA 6505 137 90 94 Global One Communicaoes Ltda 6503 136 203 92 AVANTEL, S.A. 7303 121 55 19 Telecom Argentina Stet-France 11992 89 9 30 Integrated Systems 14420 84 6 33 ANDINATEL S.A. 6535 81 5 16 Chilesat Servicios Empresari 10481 81 32 7 Prima S.A. 11556 80 40 2 Cable-Wireless Panama 11311 79 7 19 Sinectis S.A. 5639 77 8 8 Telecommunications Services o 15311 76 21 36 Telefonica Empresas 4270 70 18 9 Red de Interconexion Universi 14117 69 5 4 Telefonica del Sur S.A. 11340 68 21 37 Red Universitaria Nacional AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 252 632 219 The Internet Solution 5536 113 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 92 276 81 The Internetworking Company o 14988 45 16 1 Botswana Telecommunications C 20928 44 16 1 Noor Advanced Technologies AS 9129 33 3 4 UUNET Kenya 24835 33 18 6 RAYA Telecom - Egypt 6713 27 42 10 Itissalat Al-MAGHRIB 8524 26 2 4 AUCEGYPT Autonomous System 5713 25 125 23 Telkom SA Ltd 16637 24 10 19 Johnnic e-Ventures 10798 18 1 12 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 8346 15 7 14 SONATEL-AS Autonomous System 12455 15 4 2 Jambonet Autonomous system 15706 15 4 2 Sudatel Internet Exchange Aut 21491 14 1 3 UTL On-line is RF broadband I 15808 13 1 2 Communication Solutions Ltd i 17148 13 1 7 First National Bank Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 741 735 Covad Communications 4134 833 677 Data Communications Bureau 4323 777 562 Time Warner Telecom 6347 662 540 SAVVIS Communications Corpora 9583 529 423 Satyam Infoway Ltd., 7843 490 386 Adelphia Corp. 6197 712 372 BellSouth Network Solutions, 5668 388 370 Century Telephone 22773 380 362 Cox Communications, Inc. Atla 701 1275 356 UUNET Technologies, Inc. 6467 387 356 E.Spire Communications, Inc. 27364 351 332 Armstrong Cable Services 721 619 330 DLA Systems Automation Center 9929 363 329 China Netcom Corp. 22909 360 323 Comcast Cable Corporation 4755 369 319 Videsh Sanchar Nigam Ltd. Aut 1239 931 310 Sprint 17676 347 308 XTAGE CORPORATION 11172 357 303 Servicios Alestra S.A de C.V 4766 563 298 Korea Internet Exchange for " List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65217 PRIVATE 192.102.236.0/24 217 University of Minnes 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 65512 PRIVATE 192.248.0.0/17 9329 Sri Lanka Telecom In 64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro 64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro 64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro 64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro 64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro 64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro 64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro 64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro 64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro 64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro 64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro 64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro 64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro 64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro 64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro 64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro 64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro 64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro 64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro 64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro 64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro 64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro 64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro 64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro 64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro 64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro 64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:6 /11:14 /12:63 /13:133 /14:304 /15:540 /16:7971 /17:2175 /18:3786 /19:9730 /20:10236 /21:7588 /22:10467 /23:12091 /24:78456 /25:246 /26:190 /27:98 /28:37 /29:9 /30:72 /31:0 /32:27 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 725 741 Covad Communications 6197 567 712 BellSouth Network Solutions, 7018 543 1396 AT&T WorldNet Services 6347 482 662 SAVVIS Communications Corpora 702 411 657 UUNET - Commercial IP service 9583 371 529 Satyam Infoway Ltd., 4766 367 563 Korea Internet Exchange for " 1239 364 931 Sprint 701 360 1275 UUNET Technologies, Inc. 5668 339 388 Century Telephone 27364 337 351 Armstrong Cable Services 6198 336 457 BellSouth Network Solutions, 20115 308 583 Charter Communications 9929 290 363 China Netcom Corp. 6467 286 387 E.Spire Communications, Inc. 6517 265 292 Yipes Communications, Inc. 13609 259 302 Choice One Communications Inc 3320 247 301 Deutsche Telekom AG 25844 245 245 Skadden, Arps, Slate, Meagher 14824 242 265 NewSouth Communications Corp. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:2 12:850 13:1 15:5 16:2 17:3 20:9 24:698 32:66 33:2 38:81 40:53 44:4 55:1 56:3 57:16 60:6 61:463 62:502 63:1840 64:2246 65:2053 66:2457 67:362 68:542 69:694 70:34 80:529 81:365 82:206 83:130 84:34 128:95 129:171 130:86 131:170 132:23 134:187 135:17 136:186 137:50 138:173 139:38 140:161 141:107 142:120 143:59 144:101 145:41 146:293 147:93 148:419 149:110 150:88 151:70 152:159 153:68 154:2 155:129 156:64 157:71 158:145 159:158 160:54 161:71 162:390 163:79 164:185 165:159 166:115 167:222 168:285 169:114 170:276 171:9 192:5565 193:2869 194:2104 195:1460 196:581 198:3679 199:3259 200:3700 201:15 202:4830 203:5662 204:3158 205:2065 206:2298 207:2480 208:2147 209:3001 210:1458 211:590 212:987 213:1205 214:95 215:30 216:3725 217:991 218:185 219:93 220:231 221:33 222:84 End of report

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