The Cidr Report

11 Mar 2005

      This report has been generated at Fri Mar 11 21:44:47 2005 AEST.
The report analyses the BGP Routing Table of an AS4637 (Reach) router
and generates a report on aggregation potential within the table.

Check http://www.cidr-report.org/as4637 for a current version of this report.

Recent Table History
        Date      Prefixes    CIDR Agg
        04-03-05    153278      105390
        05-03-05    153378      105315
        06-03-05    153440      105384
        07-03-05    153441      105325
        08-03-05    153643      105315
        09-03-05    153530      105535
        10-03-05    153951      105525
        11-03-05    154352      105661

AS Summary
         19025  Number of ASes in routing system
          7767  Number of ASes announcing only one prefix
          1455  Largest number of prefixes announced by an AS
                AS7018 : ATTW AT&T WorldNet Services
      81710592  Largest address span announced by an AS (/32s)
                AS721  : DNIC DoD Network Information Center

Aggregation Summary
The algorithm used in this report proposes aggregation only
when there is a precise match using the AS path, so as 
to preserve traffic transit policies. Aggregation is also
proposed across non-advertised address space ('holes').

 --- 11Mar05 ---
ASnum    NetsNow NetsAggr  NetGain   % Gain   Description

Table     153828   105617    48211    31.3%   All ASes

AS4323      1047      224      823    78.6%   TWTC Time Warner Telecom
AS18566      774        7      767    99.1%   CVAD Covad Communications
AS4134       873      206      667    76.4%   CHINANET-BACKBONE
                                               No.31,Jin-rong Street
AS721        977      429      548    56.1%   DNIC DoD Network Information
                                               Center
AS22773      478       26      452    94.6%   CXA Cox Communications Inc.
AS7018      1455     1017      438    30.1%   ATTW AT&T WorldNet Services
AS27364      465       45      420    90.3%   ARMC Armstrong Cable Services
AS6197       872      464      408    46.8%   BNS-14 BellSouth Network
                                               Solutions, Inc
AS3602       500      138      362    72.4%   SPCA Sprint Canada Inc.
AS6478       500      145      355    71.0%   ATTW AT&T WorldNet Services
AS17676      407       82      325    79.9%   JPNIC-JP-ASN-BLOCK Japan
                                               Network Information Center
AS9929       347       43      304    87.6%   CNCNET-CN China Netcom Corp.
AS4766       573      280      293    51.1%   KIXS-AS-KR Korea Telecom
AS14654      260        6      254    97.7%   WAYPOR-3 Wayport
AS9443       378      126      252    66.7%   INTERNETPRIMUS-AS-AP Primus
                                               Telecommunications
AS1239       904      657      247    27.3%   SPRN Sprint
AS9583       608      366      242    39.8%   SIFY-AS-IN Sify Limited
AS7545       474      234      240    50.6%   TPG-INTERNET-AP TPG Internet
                                               Pty Ltd
AS4355       297       60      237    79.8%   ERSD EARTHLINK, INC
AS6198       457      230      227    49.7%   BNS-14 BellSouth Network
                                               Solutions, Inc
AS15270      255       35      220    86.3%   PDP-14 PaeTec.net -a division
                                               of PaeTecCommunications, Inc.
AS5668       459      242      217    47.3%   CIH-12 CenturyTel Internet
                                               Holdings, Inc.
AS6140       382      171      211    55.2%   IMPSA ImpSat
AS2386       831      621      210    25.3%   ADCS-1 AT&T Data
                                               Communications Services
AS9304       246       39      207    84.1%   HUTCHISON-AS-AP Hutchison
                                               Global Communications
AS11456      310      106      204    65.8%   NUVOX NuVox Communications,
                                               Inc.
AS6167       271       78      193    71.2%   CELLCO Cellco Partnership
AS9498       256       66      190    74.2%   BBIL-AP BHARTI BT INTERNET
                                               LTD.
AS22909      340      153      187    55.0%   CMCS Comcast Cable
                                               Communications, Inc.
AS6517       308      122      186    60.4%   YIPS Yipes Communications,
                                               Inc.

Total      16304     6418     9886    60.6%   Top 30 total

Possible Bogus Routes

        24.138.80.0/20       AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd.
        24.246.0.0/17        AS7018  ATTW AT&T WorldNet Services
        24.246.128.0/18      AS7018  ATTW AT&T WorldNet Services
        64.17.32.0/24        AS5024  BRIDGE-75 BridgeNet, LC
        64.17.33.0/24        AS5024  BRIDGE-75 BridgeNet, LC
        64.17.37.0/24        AS5024  BRIDGE-75 BridgeNet, LC
        64.57.160.0/19       AS3561  SAVVI-3 Savvis
        64.92.128.0/19       AS3561  SAVVI-3 Savvis
        64.127.0.0/18        AS7018  ATTW AT&T WorldNet Services
        64.209.192.0/18      AS3561  SAVVI-3 Savvis
        67.47.0.0/17         AS4765  WORLDNET-AS World Net & Services Co., Ltd.
        67.47.0.0/18         AS4765  WORLDNET-AS World Net & Services Co., Ltd.
        67.47.64.0/18        AS4765  WORLDNET-AS World Net & Services Co., Ltd.
        192.30.93.0/24       AS17757 HPAUS-AP HP Australia
        192.30.94.0/24       AS17757 HPAUS-AP HP Australia
        192.40.105.0/24      AS5515  SONERA-GLOBAL-IP Sonera Solution Autonomous System
        192.43.230.0/24      AS7575  AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
        192.44.0.0/19        AS702   AS702 MCI EMEA - Commercial IP service provider in Europe
        192.44.0.0/24        AS5501  FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft
        192.70.164.0/24      AS25689 NRCC-2 National Research Council of Canada
        192.81.182.0/24      AS719   ELISA-AS Elisa Oyj
        192.81.183.0/24      AS719   ELISA-AS Elisa Oyj
        192.81.184.0/24      AS719   ELISA-AS Elisa Oyj
        192.119.135.0/24     AS270   NASA National Aeronautics and Space Administration
        192.124.252.0/22     AS680   DFN-IP service G-WiN
        192.133.6.0/24       AS4004  GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System
        192.135.50.0/24      AS7018  ATTW AT&T WorldNet Services
        192.136.53.0/24      AS8346  SONATEL-AS Autonomous System
        192.153.144.0/21     AS568   DISOUN DISO-UNRRA
        192.172.0.0/19       AS568   DISOUN DISO-UNRRA
        192.188.208.0/20     AS568   DISOUN DISO-UNRRA
        192.200.100.0/24     AS7018  ATTW AT&T WorldNet Services
        196.2.95.0/24        AS8668  TELONE-AS TelOne Zimbabwe P/L
        198.23.26.0/24       AS4390  BELLAT-7 Bell Atlantic, Inc.
        198.97.72.0/21       AS568   DISOUN DISO-UNRRA
        198.97.80.0/20       AS568   DISOUN DISO-UNRRA
        198.97.88.0/24       AS89    NUSC-1 Naval Underwater Systems Center
        198.97.240.0/20      AS568   DISOUN DISO-UNRRA
        198.97.247.0/24      AS3475  DEPART-52 Department of the Navy
        198.101.4.0/22       AS568   DISOUN DISO-UNRRA
        198.136.32.0/20      AS19329 MCBCC Martin County Board of County Commissioners
        198.144.32.0/19      AS3998  CITY CityNet, Inc.
        198.160.171.0/24     AS7046  UU UUNET Technologies, Inc.
        198.161.87.0/24      AS6539  GTGR GT Group Telecom Services Corp.
        198.163.155.0/24     AS684   MRN Manitoba Regional Network
        198.167.0.0/16       AS7456  INS-51 Interhop Network SERVICES Inc.
        198.167.163.0/24     AS15290 ACCA-2 Allstream Corp. Corporation Allstream
        198.168.0.0/16       AS701   UU UUNET Technologies, Inc.
        198.169.0.0/16       AS803   SASK SaskTel
        198.232.133.0/24     AS23075 SKOTOS Skotos Tech, Inc
        199.10.0.0/16        AS568   DISOUN DISO-UNRRA
        199.60.0.0/20        AS271   UBC-3 University of British Columbia
        199.96.44.0/23       AS19092 360NE-1 360Networks (USA) Inc.
        199.96.46.0/24       AS19092 360NE-1 360Networks (USA) Inc.
        199.114.0.0/21       AS568   DISOUN DISO-UNRRA
        199.114.128.0/18     AS568   DISOUN DISO-UNRRA
        199.114.130.0/24     AS721   DNIC DoD Network Information Center
        199.114.132.0/24     AS721   DNIC DoD Network Information Center
        199.114.134.0/24     AS3541  DISAUN DISA/UNRRA
        199.114.136.0/24     AS27044 DNIC DoD Network Information Center
        199.114.138.0/24     AS721   DNIC DoD Network Information Center
        199.114.140.0/24     AS3544  DISAUN DISA/UNRRA
        199.114.142.0/24     AS721   DNIC DoD Network Information Center
        199.114.144.0/24     AS721   DNIC DoD Network Information Center
        199.114.148.0/24     AS721   DNIC DoD Network Information Center
        199.114.150.0/24     AS721   DNIC DoD Network Information Center
        199.114.152.0/24     AS27033 DNIC DoD Network Information Center
        199.114.154.0/24     AS1733  ADP-41 AF DDN PMO
        199.114.156.0/24     AS27034 DNIC DoD Network Information Center
        199.114.160.0/24     AS1733  ADP-41 AF DDN PMO
        199.120.32.0/19      AS16582 NXLI NEXTLEVEL INTERNET, INC.
        199.121.0.0/16       AS568   DISOUN DISO-UNRRA
        199.123.0.0/18       AS721   DNIC DoD Network Information Center
        199.123.16.0/20      AS568   DISOUN DISO-UNRRA
        199.123.80.0/21      AS568   DISOUN DISO-UNRRA
        199.189.32.0/19      AS7332  IQUEST IQuest Internet
        199.202.0.0/16       AS701   UU UUNET Technologies, Inc.
        201.239.0.0/16       AS22047 VTR BANDA ANCHA S.A.
        202.72.240.0/20      AS24320 RAILCOM Mongolian Railway Commercial Center Railcom
        202.86.252.0/22      AS9304  HUTCHISON-AS-AP Hutchison Global Communications
        202.86.253.0/24      AS9304  HUTCHISON-AS-AP Hutchison Global Communications
        202.86.254.0/24      AS9304  HUTCHISON-AS-AP Hutchison Global Communications
        202.86.255.0/24      AS9304  HUTCHISON-AS-AP Hutchison Global Communications
        202.93.0.0/20        AS4134  CHINANET-BACKBONE No.31,Jin-rong Street
        202.164.224.0/19     AS7599  IPXC-AS-AP IP Exchange
        203.32.4.0/23        AS7617  TELEONE-HK TeleTeleOne (HK) Limited
        203.62.0.0/17        AS7572  AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
        203.99.0.0/19        AS17746 ORCONINTERNET-NZ-AP Orcon Internet
        203.210.69.0/24      AS17536 PRODIGY-AS-AP Prodidgy Telecommunications
        204.154.125.0/24     AS3952  TELLAB-1 TELLABS Operations, Inc.
        204.154.126.0/24     AS3952  TELLAB-1 TELLABS Operations, Inc.
        204.154.127.0/24     AS3952  TELLAB-1 TELLABS Operations, Inc.
        204.194.110.0/23     AS30653 EXOBI Exobit Networks Inc.
        205.150.0.0/15       AS701   UU UUNET Technologies, Inc.
        206.108.96.0/19      AS577   BAC-14 Bell Advanced Communications Inc.
        206.128.104.0/21     AS11709 VIIN VIRTUAL INTERACTIVE CENTER
        206.167.57.0/24      AS376   RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ)
        206.191.64.0/18      AS15290 ACCA-2 Allstream Corp. Corporation Allstream
        206.191.96.0/19      AS15290 ACCA-2 Allstream Corp. Corporation Allstream
        207.231.96.0/19      AS11194 NUNETI NuNet Inc
        208.138.48.0/20      AS7955  SOURCE-48 SourceNet Corporation
        209.27.51.0/24       AS14132 INTERN-582 Internet Gateway Inc.
        209.205.69.0/24      AS21578 Universidad autonoma de Bucaramanga
        209.205.70.0/24      AS21578 Universidad autonoma de Bucaramanga
        209.205.81.0/24      AS15066 SkyNet de Colombia S.A.
        209.205.82.0/24      AS15066 SkyNet de Colombia S.A.
        209.205.84.0/24      AS15066 SkyNet de Colombia S.A.
        209.213.32.0/19      AS10629 INS-52 Inter-Pacific Network Services
        209.213.48.0/24      AS10629 INS-52 Inter-Pacific Network Services
        209.213.49.0/24      AS10629 INS-52 Inter-Pacific Network Services
        209.251.0.0/19       AS11036 SISCOM-1 SISCOM, Inc
        216.37.110.0/23      AS4264  CERFN California Education and Research Federation Network
        216.96.128.0/18      AS7018  ATTW AT&T WorldNet Services
        216.145.156.0/24     AS20304 JIS-32 JVLNET Internet Services
        216.145.158.0/24     AS20304 JIS-32 JVLNET Internet Services
        216.145.176.0/21     AS20304 JIS-32 JVLNET Internet Services
        216.145.177.0/24     AS20304 JIS-32 JVLNET Internet Services
        216.145.178.0/24     AS20304 JIS-32 JVLNET Internet Services
        216.145.184.0/24     AS10758 INWAVE INWave Internet, Inc
        216.145.185.0/24     AS10758 INWAVE INWave Internet, Inc
        216.145.186.0/24     AS10758 INWAVE INWave Internet, Inc
        216.145.187.0/24     AS10758 INWAVE INWave Internet, Inc
        216.145.188.0/24     AS10758 INWAVE INWave Internet, Inc
        216.145.189.0/24     AS10758 INWAVE INWave Internet, Inc
        216.145.200.0/21     AS20304 JIS-32 JVLNET Internet Services
        216.171.96.0/20      AS3356  LEVEL3 Level 3 Communications

Please see http://www.cidr-report.org for the full report

------------------------------------
Copies of this report are mailed to:
  nanog@merit.edu
  eof-list@ripe.net
  apops@apops.net
  routing-wg@ripe.net
  afnog@afnog.org
  swinog@swinog.ch

The Cidr Report

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