The Cidr Report

This report has been generated at Fri Aug 6 21:43:33 2004 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
        30-07-04 139803 96247
        31-07-04 139994 96285
        01-08-04 140090 96273
        02-08-04 140060 96314
        03-08-04 140246 96257
        04-08-04 140341 96303
        05-08-04 140243 96381
        06-08-04 140324 96516

AS Summary
         17654 Number of ASes in routing system
          7205 Number of ASes announcing only one prefix
          1385 Largest number of prefixes announced by an AS
                AS7018 : ATTW AT&T WorldNet Services
      85289216 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').

--- 06Aug04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description

Table 140438 96527 43911 31.3% All ASes

AS6347 951 103 848 89.2% SAVV SAVVIS Communications
                                               Corporation
AS18566 700 9 691 98.7% CVAD Covad Communications
AS4134 767 171 596 77.7% CHINANET-BACKBONE
                                               No.31,Jin-rong Street
AS4323 767 210 557 72.6% TWTC Time Warner Telecom
AS7018 1385 958 427 30.8% ATTW AT&T WorldNet Services
AS7843 514 129 385 74.9% ADELPH-13 Adelphia Corp.
AS6197 743 378 365 49.1% BNS-14 BellSouth Network
                                               Solutions, Inc
AS701 1279 924 355 27.8% UU UUNET Technologies, Inc.
AS9583 514 171 343 66.7% SATYAMNET-AS Satyam Infoway
                                               Ltd.,
AS22773 392 68 324 82.7% CXAB Cox Communications Inc.
                                               Atlanta
AS6467 353 32 321 90.9% ACSI e.spire Communications,
                                               Inc.
AS22909 358 39 319 89.1% CMCS Comcast Cable
                                               Communications, Inc.
AS1239 951 637 314 33.0% SPRN Sprint
AS27364 350 36 314 89.7% ARMC Armstrong Cable Services
AS17676 339 37 302 89.1% JPNIC-JP-ASN-BLOCK Japan
                                               Network Information Center
AS11172 347 50 297 85.6% Servicios Alestra S.A de C.V
AS9929 326 31 295 90.5% CNCNET-CN China Netcom Corp.
AS4355 380 99 281 73.9% ERSD EARTHLINK, INC
AS6478 333 58 275 82.6% ATTW AT&T WorldNet Services
AS9443 359 109 250 69.6% INTERNETPRIMUS-AS-AP Primus
                                               Telecommunications
AS14654 253 10 243 96.0% WAYPOR-3 Wayport
AS4766 506 271 235 46.4% KIXS-AS-KR Korea Telecom
AS6198 449 216 233 51.9% BNS-14 BellSouth Network
                                               Solutions, Inc
AS17633 238 6 232 97.5% CHINATELECOM-SD-AS-AP ASN for
                                               Shandong Provincial Net of CT
AS25844 244 15 229 93.9% SASMFL-2 Skadden, Arps, Slate,
                                               Meagher & Flom LLP
AS3356 883 667 216 24.5% LEVEL3 Level 3 Communications
AS6140 369 154 215 58.3% IMPSA ImpSat
AS6327 223 28 195 87.4% SHAWC-2 Shaw Communications
                                               Inc.
AS5668 382 192 190 49.7% CIH-12 CenturyTel Internet
                                               Holdings, Inc.
AS14824 277 103 174 62.8% NCC-105 NewSouth
                                               Communications Corp.

Total 15932 5911 10021 62.9% 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
        24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC
        24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services
        64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS
        64.46.12.0/24 AS7850 IHIGHW iHighway.net, Inc.
        64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB
        64.46.34.0/24 AS3408
        64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc.
        64.83.96.0/19 AS22934 EBNI E Broadband Now Inc.
        66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc.
        67.128.0.0/13 AS209 QWEST-4 Qwest
        69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications
        132.0.0.0/10 AS721 DNIC DoD Network Information Center
        137.0.0.0/13 AS721 DNIC DoD Network Information Center
        138.136.0.0/13 AS721 DNIC DoD Network Information Center
        158.0.0.0/13 AS721 DNIC DoD Network Information Center
        192.30.93.0/24 AS17757 HPAUS-AP HP Australia
        192.30.94.0/24 AS17757 HPAUS-AP HP Australia
        192.30.127.0/24 AS719 LANLINK Elisa Oyj
        192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
        192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network
        192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
        192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc.
        192.81.182.0/24 AS719 LANLINK Elisa Oyj
        192.81.183.0/24 AS719 LANLINK Elisa Oyj
        192.81.184.0/24 AS719 LANLINK 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
        192.136.71.0/24 AS719 LANLINK Elisa Oyj
        192.136.79.0/24 AS719 LANLINK Elisa Oyj
        192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc.
        192.153.144.0/21 AS721 DNIC DoD Network Information Center
        192.172.0.0/19 AS721 DNIC DoD Network Information Center
        192.188.208.0/20 AS721 DNIC DoD Network Information Center
        192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc.
        192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc.
        198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc.
        198.97.72.0/21 AS721 DNIC DoD Network Information Center
        198.97.80.0/20 AS721 DNIC DoD Network Information Center
        198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center
        198.97.240.0/20 AS721 DNIC DoD Network Information Center
        198.97.247.0/24 AS3475 DEPART-52 Department of the Navy
        198.101.4.0/22 AS721 DNIC DoD Network Information Center
        198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners
        198.144.32.0/19 AS3998 CITY CityNet, Inc.
        198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp.
        198.161.165.0/24 AS852 AGTA Telus Advanced Communications
        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 AS721 DNIC DoD Network Information Center
        199.60.0.0/20 AS271 UBC-3 University of British Columbia
        199.96.44.0/23 AS19092 TAMR Touch America
        199.96.46.0/24 AS19092 TAMR Touch America
        199.114.0.0/18 AS568 DISOUN DISO-UNRRA
        199.114.0.0/21 AS721 DNIC DoD Network Information Center
        199.114.128.0/18 AS721 DNIC DoD Network Information Center
        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 AS1913 DLA-8 Defense Logistics Agency
        199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency
        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 AS1913 DLA-8 Defense Logistics Agency
        199.114.154.0/24 AS1733 ADP-41 AF DDN PMO
        199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency
        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 AS721 DNIC DoD Network Information Center
        199.123.0.0/18 AS721 DNIC DoD Network Information Center
        199.123.16.0/20 AS721 DNIC DoD Network Information Center
        199.123.80.0/21 AS721 DNIC DoD Network Information Center
        199.189.32.0/19 AS7332 IQUEST IQuest Internet
        199.197.8.0/22 AS21814 PARSON-18 Parsons Corp.
        199.202.0.0/16 AS701 UU UUNET Technologies, Inc.
        202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES
        202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd.
        202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
        202.81.96.0/19 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
        202.81.109.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited
        202.81.121.0/24 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
        202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
        202.123.96.0/20 AS9288 COMCEN-AS-AP Com-Cen Pty Ltd
        202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus
        202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange
        203.32.4.0/23 AS7617
        203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
        203.84.145.0/24 AS4637 REACH Reach Network Border AS
        203.84.146.0/24 AS4637 REACH Reach Network Border AS
        203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc.
        203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc.
        203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc.
        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.
        204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc.
        205.150.0.0/15 AS701 UU UUNET Technologies, Inc.
        205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications
        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
        206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd.
        206.253.190.0/23 AS8123 POLYBA Polybase
        207.231.96.0/19 AS11194 NUNETI NuNet Inc
        208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC
        209.172.0.0/18 AS7770 TRTI Triton Technologies, 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
        209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services
        209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services
        209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services
        209.213.56.0/24 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
        216.145.130.0/24 AS11937 TRXI TRX Inc.
        216.145.132.0/24 AS11937 TRXI TRX Inc.
        216.145.133.0/24 AS11937 TRXI TRX Inc.
        216.145.134.0/24 AS11937 TRXI TRX Inc.
        216.145.135.0/24 AS11937 TRXI TRX Inc.
        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
        216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc
        216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services
        216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications
        216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications
        216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications
        216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications
        216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications
        216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications
        216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications

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