This report has been generated at Fri Mar 18 23:44:38 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 11-03-05 154352 105623 12-03-05 153788 105737 13-03-05 153942 105692 14-03-05 153905 105696 15-03-05 153915 105841 16-03-05 154006 105994 17-03-05 154113 106073 18-03-05 154393 106121 AS Summary 19082 Number of ASes in routing system 7777 Number of ASes announcing only one prefix 1449 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 90498304 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'). --- 18Mar05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 154543 106136 48407 31.3% All ASes AS4323 1065 225 840 78.9% TWTC Time Warner Telecom AS18566 778 7 771 99.1% CVAD Covad Communications AS4134 878 208 670 76.3% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1121 568 553 49.3% DNIC DoD Network Information Center AS22773 481 27 454 94.4% CXA Cox Communications Inc. AS27364 465 22 443 95.3% ARMC Armstrong Cable Services AS7018 1449 1026 423 29.2% ATTW AT&T WorldNet Services AS6197 874 465 409 46.8% BNS-14 BellSouth Network Solutions, Inc AS3602 506 144 362 71.5% SPCA Sprint Canada Inc. AS6478 499 148 351 70.3% ATTW AT&T WorldNet Services AS17676 416 85 331 79.6% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 347 48 299 86.2% CNCNET-CN China Netcom Corp. AS4766 568 278 290 51.1% KIXS-AS-KR Korea Telecom AS14654 262 6 256 97.7% WAYPOR-3 Wayport AS9443 378 126 252 66.7% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 912 661 251 27.5% SPRN Sprint AS6140 381 137 244 64.0% IMPSA ImpSat AS9583 621 378 243 39.1% SIFY-AS-IN Sify Limited AS7545 475 234 241 50.7% TPG-INTERNET-AP TPG Internet Pty Ltd AS4355 289 60 229 79.2% ERSD EARTHLINK, INC AS6198 457 231 226 49.5% BNS-14 BellSouth Network Solutions, Inc AS15270 259 36 223 86.1% PDP-14 PaeTec.net -a division of PaeTecCommunications, Inc. AS5668 460 244 216 47.0% CIH-12 CenturyTel Internet Holdings, Inc. AS2386 833 626 207 24.8% ADCS-1 AT&T Data Communications Services AS11456 310 106 204 65.8% NUVOX NuVox Communications, Inc. AS6167 275 78 197 71.6% CELLCO Cellco Partnership AS9498 258 67 191 74.0% BBIL-AP BHARTI BT INTERNET LTD. AS6517 308 121 187 60.7% YIPS Yipes Communications, Inc. AS6147 205 20 185 90.2% Telefonica del Peru S.A.A. AS16852 238 64 174 73.1% FDCI Focal Data Communications of Illinois Total 16368 6446 9922 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 64.46.0.0/18 AS7850 IHIGHW iHighway.net, Inc. 64.46.0.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.1.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.2.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.3.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.4.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.5.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.6.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.7.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.8.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.9.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.46.10.0/24 AS7850 IHIGHW iHighway.net, Inc. 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. 172.32.0.0/24 AS7011 CITIZE-32 Citizens Utilities 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 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 192.200.100.0/24 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 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. 198.160.171.0/24 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 AS721 DNIC DoD Network Information Center 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 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 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 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 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.150.112.0/20 AS17474 CONCEPT-NET-AS-NZ-AP ConceptNet Limited. Internet Service Provider. New Zealand 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 AS6971 ATG-59 Advanced Telcom Group, Inc 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 209.222.137.0/24 AS27429 TIL-33 Telesat International Ltd. 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 216.145.200.0/21 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