This report has been generated at Sun Mar 26 23:48:31 2006 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 20-03-06 180634 119199 21-03-06 180743 119252 22-03-06 181051 119280 23-03-06 180991 119353 24-03-06 180928 119389 25-03-06 181028 119484 26-03-06 181082 119580 26-03-06 181055 119337 AS Summary 21701 Number of ASes in routing system 9026 Number of ASes announcing only one prefix 1494 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 91436032 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - 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'). --- 26Mar06 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 180958 119436 61522 34.0% All ASes AS4323 1238 249 989 79.9% TWTC - Time Warner Telecom, Inc. AS18566 923 9 914 99.0% COVAD - Covad Communications Co. AS4134 987 258 729 73.9% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1010 312 698 69.1% DLA-ASNBLOCK-AS - DoD Network Information Center AS22773 638 48 590 92.5% CCINET-2 - Cox Communications Inc. AS7018 1494 965 529 35.4% ATT-INTERNET4 - AT&T WorldNet Services AS6197 1004 479 525 52.3% BATI-ATL - BellSouth Network Solutions, Inc AS19916 563 65 498 88.5% ASTRUM-0001 - OLM LLC AS855 546 64 482 88.3% CANET-ASN-4 - Aliant Telecom AS7757 473 19 454 96.0% CCCH-AS4 - Comcast Cable Communications Holdings, Inc AS17488 499 49 450 90.2% HATHWAY-NET-AP Hathway IP Over Cable Internet AS3602 538 109 429 79.7% AS3602-RTI - Rogers Telecom Inc. AS812 438 28 410 93.6% ROGERS-CABLE - Rogers Cable Inc. AS9498 561 157 404 72.0% BBIL-AP BHARTI BT INTERNET LTD. AS4755 738 345 393 53.3% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS17676 484 107 377 77.9% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS11492 624 272 352 56.4% CABLEONE - CABLE ONE AS15270 387 36 351 90.7% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS6198 584 239 345 59.1% BATI-MIA - BellSouth Network Solutions, Inc AS4766 644 304 340 52.8% KIXS-AS-KR Korea Telecom AS6467 387 49 338 87.3% ESPIRECOMM - Xspedius Communications Co. AS22047 384 86 298 77.6% VTR BANDA ANCHA S.A. AS18101 324 28 296 91.4% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS14654 302 14 288 95.4% WAYPORT - Wayport AS3352 307 31 276 89.9% TELEFONICA-DATA-ESPANA Internet Access Network of TDE AS6167 339 64 275 81.1% CELLCO-PART - Cellco Partnership AS5668 525 251 274 52.2% AS-5668 - CenturyTel Internet Holdings, Inc. AS19262 618 345 273 44.2% VZGNI-TRANSIT - Verizon Internet Services Inc. AS9583 875 605 270 30.9% SIFY-AS-IN Sify Limited AS1239 851 603 248 29.1% SPRINTLINK - Sprint Total 19285 6190 13095 67.9% Top 30 total Possible Bogus Routes 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 61.4.64.0/20 AS9929 CNCNET-CN China Netcom Corp. 64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.90.128.0/20 AS6971 ESCH - Eschelon Telecommunications, Inc. 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.51.134.0/24 AS29876 LNTC - Latency LLC 66.96.0.0/20 AS3770 WORLDPATH-AS - WorldPath Internet Services 66.117.0.0/19 AS33104 FUZION-COLO - FUZION COLO 66.117.0.0/21 AS30033 NHI-NETWORKS - NHI Networks 66.117.8.0/24 AS174 COGENT Cogent/PSI 66.117.23.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.25.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.26.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.27.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.187.96.0/24 AS10026 ANC Asia Netcom Corporation 66.187.108.0/24 AS10026 ANC Asia Netcom Corporation 66.187.109.0/24 AS10026 ANC Asia Netcom Corporation 66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 69.31.151.0/24 AS26627 AS-PILOSOFT - Pilosoft, Inc. 69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc. 91.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 91.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 131.64.0.0/12 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 132.0.0.0/10 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 137.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 138.136.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd 158.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC 183.206.196.0/24 AS2188 FR-RENATER-ASTER Reseau Regional ASTER 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 192.44.0.0/19 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 NRCNET-AS - National Research Council of Canada 192.72.0.0/16 AS4780 SEEDNET Digital United Inc. 192.72.0.0/18 AS4780 SEEDNET Digital United Inc. 192.72.192.0/18 AS4780 SEEDNET Digital United Inc. 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network 192.96.36.0/24 AS5713 AFRINIC African Network Information Center 192.96.37.0/24 AS10474 AFRINIC African Network Information Center 192.96.135.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.136.0/23 AS2018 TENET - 1 - The Uninet Project 192.96.140.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.143.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.145.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.177.0/24 AS6083 AFRINIC African Network Information Center 192.96.250.0/24 AS2018 TENET - 1 - The Uninet Project 192.107.104.0/24 AS6458 GUATEL 192.122.212.0/24 AS209 ASN-QWEST - Qwest 192.124.252.0/22 AS680 DFN-IP DFN-IP service X-WiN 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.168.255.255/32 AS4637 REACH Reach Network Border AS 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 193.32.19.0/24 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.32.20.0/23 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.36.1.0/24 AS8220 COLT COLT Telecommunications 193.37.69.0/24 AS2856 BT-UK-AS BTnet UK Regional network 193.37.236.0/24 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.110.77.0/24 AS3356 LEVEL3 Level 3 Communications 193.110.78.0/24 AS3356 LEVEL3 Level 3 Communications 193.110.79.0/24 AS3356 LEVEL3 Level 3 Communications 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.59.176.0/20 AS1273 CW Cable & Wireless 194.153.156.0/24 AS24865 KMITCHELL-AS Keith Mitchell's Network 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.92.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.222.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.249.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.250.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.251.0/24 AS2018 TENET - 1 - The Uninet Project 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.96.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc. 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS3542 ITSDN-U5 - DISA/UNRRA 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc. 202.45.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd. 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 202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.131.64.0/19 AS9381 NEWTT-IP-AP Wharf T&T Ltd. 202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER 203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.134.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.89.143.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.154.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.29.185.0/24 AS7268 ATHENET - Athenet Internet Services 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 209.40.192.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.200.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.208.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.216.0/21 AS6487 CyberNet de Guatemala S.A. 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. 209.234.0.0/18 AS3845 STATE-NET - CS&W, Inc. 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A. 216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet Services 216.228.224.0/20 AS13674 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc. 216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services Please see http://www.cidr-report.org for the full report