This report has been generated at Fri Nov 24 23:46:01 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 17-11-06 200743 129902 18-11-06 200915 130128 19-11-06 201082 130047 20-11-06 201006 130284 21-11-06 201209 130304 22-11-06 201223 130430 23-11-06 201519 130575 24-11-06 201798 130529 AS Summary 23674 Number of ASes in routing system 9993 Number of ASes announcing only one prefix 1508 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 91345152 Largest address span announced by an AS (/32s) AS721 : DISA-ASNBLK - 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'). --- 24Nov06 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 201833 130564 71269 35.3% All ASes AS4755 1040 68 972 93.5% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS4134 1204 282 922 76.6% CHINANET-BACKBONE No.31,Jin-rong Street AS18566 979 107 872 89.1% COVAD - Covad Communications Co. AS9498 889 129 760 85.5% BBIL-AP BHARTI BT INTERNET LTD. AS4323 1040 300 740 71.2% TWTC - Time Warner Telecom, Inc. AS22773 711 47 664 93.4% CCINET-2 - Cox Communications Inc. AS19262 736 176 560 76.1% VZGNI-TRANSIT - Verizon Internet Services Inc. AS721 844 305 539 63.9% DISA-ASNBLK - DoD Network Information Center AS7018 1508 973 535 35.5% ATT-INTERNET4 - AT&T WorldNet Services AS6197 1025 507 518 50.5% BATI-ATL - BellSouth Network Solutions, Inc AS11492 810 300 510 63.0% CABLEONE - CABLE ONE AS19916 567 70 497 87.7% ASTRUM-0001 - OLM LLC AS17488 553 61 492 89.0% HATHWAY-NET-AP Hathway IP Over Cable Internet AS18101 485 25 460 94.8% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS855 539 87 452 83.9% CANET-ASN-4 - Bell Aliant AS17676 501 65 436 87.0% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS15270 482 60 422 87.6% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS3602 524 106 418 79.8% AS3602-RTI - Rogers Telecom Inc. AS4766 707 309 398 56.3% KIXS-AS-KR Korea Telecom AS812 425 34 391 92.0% ROGERS-CABLE - Rogers Cable Inc. AS9583 958 586 372 38.8% SIFY-AS-IN Sify Limited AS4812 433 64 369 85.2% CHINANET-SH-AP China Telecom (Group) AS2386 1104 737 367 33.2% INS-AS - AT&T Data Communications Services AS8151 759 402 357 47.0% Uninet S.A. de C.V. AS6467 382 52 330 86.4% ESPIRECOMM - Xspedius Communications Co. AS16852 375 59 316 84.3% BROADWING-FOCAL - Broadwing Communications, Inc. AS6198 550 262 288 52.4% BATI-MIA - BellSouth Network Solutions, Inc AS6517 390 111 279 71.5% YIPESCOM - Yipes Communications, Inc. AS16814 328 52 276 84.1% NSS S.A. AS33588 409 133 276 67.5% BRESNAN-AS - Bresnan Communications, LLC. Total 21257 6469 14788 69.6% 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. 64.7.112.0/21 AS13511 ITXC - ITXC 64.7.120.0/21 AS13537 ITXC-2 - ITXC 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 65.60.45.0/24 AS32311 JKS-ASN - JKS Media, LLC 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.163.96.0/20 AS25767 WAVEFORM - Waveform Technology, LLC 66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 69.36.128.0/20 AS16527 GVTCINTERNET - Guadalupe Valley Telephone Co-op, 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. 72.9.130.0/24 AS29904 THEBOE-29904 - The Boeing Company 78.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 78.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 79.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 79.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project 124.40.0.0/16 AS2914 NTT-COMMUNICATIONS-2914 - NTT America, Inc. 125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 131.64.0.0/12 AS721 DISA-ASNBLK - DoD Network Information Center 132.0.0.0/10 AS721 DISA-ASNBLK - DoD Network Information Center 137.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 138.136.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 139.56.0.0/19 AS14956 BROADVISION-ASN - Broadvision Inc. 139.56.72.0/23 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd 158.0.0.0/13 AS721 DISA-ASNBLK - DoD Network Information Center 159.3.211.0/24 AS2687 ATT-ASIAPACIFIC AT&T Global Network Services - EMEA 163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC 190.54.0.0/16 AS6429 Core Internet AT&T Chile 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 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services 192.69.107.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.69.108.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.69.177.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.160.0/24 AS719 ELISA-AS Elisa Oyj 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 192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network 192.96.36.0/24 AS5713 SAIX-NET 192.96.37.0/24 AS10474 NETACTIVE 192.96.135.0/24 AS2018 TENET-1 192.96.136.0/23 AS2018 TENET-1 192.96.140.0/24 AS2018 TENET-1 192.96.143.0/24 AS2018 TENET-1 192.96.145.0/24 AS2018 TENET-1 192.96.177.0/24 AS6083 POSIX-AFRICA 192.96.250.0/24 AS2018 TENET-1 192.107.104.0/24 AS7137 TELEMATIX/ ENITEL 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.153.144.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 192.172.0.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 192.188.208.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 193.43.228.0/22 AS8757 ACCESS11 Access 11 Ltd. (UK) 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 194.153.117.0/24 AS31477 DUOCAST-AS Duocast 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 195.20.204.0/23 AS16131 GRAFIX-IS GrafiX Internet B.V. 195.35.104.0/24 AS12445 SPIDERNET-AS Selene s.p.a. 196.6.108.0/24 AS5713 SAIX-NET 196.6.175.0/24 AS3741 IS 196.6.176.0/23 AS3741 IS 196.6.183.0/24 AS3741 IS 196.6.196.0/24 AS3741 IS 196.6.199.0/24 AS3741 IS 196.6.208.0/24 AS3741 IS 196.6.211.0/24 AS3741 IS 196.6.212.0/23 AS3741 IS 196.6.212.0/24 AS3741 IS 196.6.222.0/23 AS3741 IS 196.6.237.0/24 AS3741 IS 196.10.119.0/24 AS2018 TENET-1 196.10.122.0/23 AS2018 TENET-1 196.10.136.0/22 AS3741 IS 196.10.140.0/22 AS3741 IS 196.10.231.0/24 AS3741 IS 196.10.251.0/24 AS2018 TENET-1 196.10.252.0/23 AS2018 TENET-1 196.10.254.0/24 AS2018 TENET-1 196.11.0.0/20 AS3741 IS 196.11.40.0/21 AS3741 IS 196.11.135.0/24 AS3741 IS 196.11.188.0/23 AS3741 IS 196.11.190.0/24 AS3741 IS 196.11.251.0/24 AS3741 IS 196.13.101.0/24 AS2018 TENET-1 196.13.102.0/23 AS2018 TENET-1 196.13.104.0/24 AS2018 TENET-1 196.13.108.0/24 AS3741 IS 196.13.116.0/22 AS2018 TENET-1 196.13.121.0/24 AS2018 TENET-1 196.13.125.0/24 AS2018 TENET-1 196.13.126.0/24 AS2018 TENET-1 196.13.128.0/22 AS3741 IS 196.13.144.0/22 AS2905 TICSA-ASN 196.13.152.0/21 AS2905 TICSA-ASN 196.13.160.0/24 AS2905 TICSA-ASN 196.13.169.0/24 AS2018 TENET-1 196.13.174.0/23 AS2018 TENET-1 196.13.176.0/21 AS2018 TENET-1 196.13.188.0/22 AS2018 TENET-1 196.13.192.0/22 AS2018 TENET-1 196.13.196.0/24 AS2018 TENET-1 196.98.17.0/24 AS1257 TELE2 198.18.0.0/15 AS8895 ISU-RUH KACST/ISU Riyadh Autonomous System 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET-1 198.54.92.0/24 AS2018 TENET-1 198.54.222.0/24 AS2018 TENET-1 198.54.249.0/24 AS2018 TENET-1 198.54.250.0/24 AS2018 TENET-1 198.54.251.0/24 AS2018 TENET-1 198.97.72.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.80.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.96.0/19 AS721 DISA-ASNBLK - DoD Network Information Center 198.97.240.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 198.101.4.0/22 AS721 DISA-ASNBLK - DoD Network Information Center 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc. 198.163.214.0/24 AS21804 ACCESS-SK - Access Communications Co-operative Limited 198.163.215.0/24 AS6327 SHAW - Shaw Communications Inc. 198.163.216.0/24 AS6327 SHAW - Shaw Communications Inc. 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.235.202.0/24 AS12188 Q9-AS - Q9 Networks Inc. 198.235.203.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.235.204.0/24 AS12188 Q9-AS - Q9 Networks Inc. 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.114.0.0/21 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.128.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.130.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.132.0/24 AS721 DISA-ASNBLK - 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 DISA-ASNBLK - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.148.0/24 AS721 DISA-ASNBLK - DoD Network Information Center 199.114.150.0/24 AS721 DISA-ASNBLK - 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 AS1733 CENTAF-SWA - AF DDN PMO 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.0.0/18 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.16.0/20 AS721 DISA-ASNBLK - DoD Network Information Center 199.123.80.0/21 AS721 DISA-ASNBLK - 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. 202.4.160.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.4.161.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.4.162.0/24 AS9498 BBIL-AP BHARTI BT INTERNET LTD. 202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 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 202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd 202.124.192.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.193.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.194.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.196.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.197.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.198.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.199.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.200.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.201.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.202.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.203.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.204.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.205.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.206.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.124.207.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.125.96.0/20 AS7693 COMNET-TH KSC Commercial Internet Co. Ltd. 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER 202.164.100.0/24 AS18101 RIL-IDC Reliance Infocom Ltd Internet Data Centre, 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 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 203.152.136.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.138.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.142.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.152.143.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport 203.175.97.0/24 AS17988 CHINASATNET-AS-HK China Digital satNet Ltd. 203.175.98.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.175.99.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.175.103.0/24 AS23888 NTC-AS-AP National Telecommunication Corporation HQ, 203.175.108.0/24 AS17988 CHINASATNET-AS-HK China Digital satNet Ltd. 203.175.110.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 204.48.58.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.48.60.0/24 AS4323 TWTC - Time Warner Telecom, Inc. 204.153.104.0/24 AS10913 INTERNAP-BLK - Internap Network Services 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 206.191.64.0/18 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 208.123.192.0/19 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 209.159.128.0/19 AS209 ASN-QWEST - Qwest 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. 210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone 213.151.32.0/19 AS31715 NETRINO-AS NetrinoUK Ltd, London, England 216.65.160.0/19 AS7770 TRITON - Triton Technologies, Inc. 216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc. 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. 216.240.240.0/20 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