This report has been generated at Mon Dec 8 23:47:57 2003 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 01-12-03 128392 90290 02-12-03 128418 90292 03-12-03 128561 90308 04-12-03 128539 90397 05-12-03 128663 90423 06-12-03 128656 90356 07-12-03 128631 90247 08-12-03 128530 90335 AS Summary 16216 Number of ASes in routing system 6458 Number of ASes announcing only one prefix 1389 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 AT&T WorldNet Services 74639616 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 08Dec03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 128679 90341 38338 29.8% All ASes AS6197 765 265 500 65.4% BATI-ATL BellSouth Network Solutions, Inc AS4323 678 206 472 69.6% TW-COMM Time Warner Communications, Inc. AS4134 549 123 426 77.6% CHINANET-BACKBONE No.31,Jin-rong Street AS7018 1389 963 426 30.7% ATT-INTERNET4 AT&T WorldNet Services AS701 1383 966 417 30.2% ALTERNET-AS UUNET Technologies, Inc. AS7843 517 122 395 76.4% ADELPHIA-AS Adelphia Corp. AS6198 609 254 355 58.3% BATI-MIA BellSouth Network Solutions, Inc AS209 859 533 326 38.0% ASN-QWEST Qwest AS22909 317 12 305 96.2% DNEO-OSP1 Comcast Cable Communications, Inc. AS22773 315 31 284 90.2% CCINET-2 Cox Communications Inc. Atlanta AS4355 383 101 282 73.6% ERMS-EARTHLNK EARTHLINK, INC AS27364 354 73 281 79.4% ACS-INTERNET Armstrong Cable Services AS1221 951 674 277 29.1% ASN-TELSTRA Telstra Pty Ltd AS1239 917 661 256 27.9% SPRINTLINK Sprint AS6347 331 85 246 74.3% DIAMOND SAVVIS Communications Corporation AS17676 285 41 244 85.6% GIGAINFRA Softbank BB Corp. AS25844 243 16 227 93.4% SKADDEN1 Skadden, Arps, Slate, Meagher & Flom LLP AS6140 346 131 215 62.1% IMPSAT-USA ImpSat AS14654 203 2 201 99.0% WAYPORT Wayport AS11305 230 37 193 83.9% INTERLAND-NET1 Interland Incorporated AS2386 402 218 184 45.8% INS-AS AT&T Data Communications Services AS4519 194 13 181 93.3% MAAS Maas Communications AS6327 204 28 176 86.3% SHAW Shaw Communications Inc. AS9583 228 57 171 75.0% SATYAMNET-AS Satyam Infoway Ltd., AS9929 197 27 170 86.3% CNCNET-CN China Netcom Corp. AS20115 581 413 168 28.9% CHARTER-NET-HKY-NC Charter Communications AS2048 250 84 166 66.4% LANET-1 State of Louisiana AS15270 204 41 163 79.9% AS-PAETEC-NET PaeTec.net -a division of PaeTecCommunications, Inc. AS6478 194 42 152 78.4% ATT-INTERNET3 AT&T WorldNet Services AS6517 237 87 150 63.3% YIPESCOM Yipes Communications, Inc. Total 14315 6306 8009 55.9% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 ANDARA-HSI Andara High Speed Internet c/o Halifax Cable Ltd. 61.12.32.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 61.12.34.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd 64.62.64.0/24 AS3549 GBLX Global Crossing 64.62.126.0/23 AS25700 SWIFTDESK SWIFTDESK VENTURE 66.41.192.0/18 AS13367 CCCH-AS3 Comcast Cable Communications Holdings, Inc 69.8.128.0/17 AS7260 NORLIGHT Norlight Telecommunications 132.0.0.0/10 AS568 SUMNET-AS DISO-UNRRA 137.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 138.136.0.0/13 AS568 SUMNET-AS DISO-UNRRA 140.143.2.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 ALTERNET-AS UUNET Technologies, Inc. 192.64.84.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.16.0/20 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.32.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.64.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.96.0/22 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.83.100.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.119.135.0/24 AS270 PSCNI-AS National Aeronautics and Space Administration 192.124.252.0/22 AS680 AS680 DFN-IP service G-WiN 192.135.50.0/24 AS7018 ATT-INTERNET4 AT&T WorldNet Services 192.136.71.0/24 AS719 AS719 LANLINK autonomous system 192.136.79.0/24 AS719 AS719 LANLINK autonomous system 192.153.144.0/21 AS568 SUMNET-AS DISO-UNRRA 192.172.0.0/19 AS568 SUMNET-AS DISO-UNRRA 192.188.208.0/20 AS568 SUMNET-AS DISO-UNRRA 192.243.32.0/23 AS2044 PALIN-AS Palin Aquisitions Inc. 198.23.26.0/24 AS4390 BELLATLANTIC-COM Bell Atlantic, Inc. 198.97.72.0/21 AS568 SUMNET-AS DISO-UNRRA 198.97.80.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.88.0/24 AS89 NUSC-CSTLNET-AS Naval Underwater Systems Center 198.97.192.0/20 AS568 SUMNET-AS DISO-UNRRA 198.97.240.0/20 AS568 SUMNET-AS DISO-UNRRA 198.101.4.0/22 AS568 SUMNET-AS DISO-UNRRA 198.136.32.0/20 AS19329 MCNET Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET CityNet, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM GT Group Telecom Services Corp. 198.161.165.0/24 AS852 ASN852 Telus Advanced Communications 198.163.155.0/24 AS684 MBNET-AS Manitoba Regional Network 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 199.10.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.60.0.0/20 AS271 BCNET-AS University of British Columbia 199.84.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 199.114.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.114.0.0/21 AS568 SUMNET-AS DISO-UNRRA 199.114.128.0/18 AS568 SUMNET-AS DISO-UNRRA 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 199.114.136.0/24 AS1913 DLA4 Defense Logistics Agency 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 AS721 DLA-ASNBLOCK-AS 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 AS1913 DLA4 Defense Logistics Agency 199.114.154.0/24 AS1733 CENTAF-SWA AF DDN PMO 199.114.156.0/24 AS1913 DLA4 Defense Logistics Agency 199.114.160.0/24 AS1733 CENTAF-SWA AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS568 SUMNET-AS DISO-UNRRA 199.123.0.0/18 AS568 SUMNET-AS DISO-UNRRA 199.123.16.0/20 AS568 SUMNET-AS DISO-UNRRA 199.123.80.0/21 AS568 SUMNET-AS DISO-UNRRA 199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 202.0.180.0/24 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.4.252.0/22 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd. 202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.72.112.0/22 AS22351 INTELSAT-1 INTELSAT 202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd. 202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network¡ªChina169 Beijing Province Network 202.165.0.0/19 AS9443 INTERNETPRIMUS-AS-AP Primus Telecommunications 202.165.0.0/20 AS9443 INTERNETPRIMUS-AS-AP Primus Telecommunications 202.165.16.0/20 AS9443 INTERNETPRIMUS-AS-AP Primus Telecommunications 202.179.64.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 202.179.65.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 202.179.66.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 202.179.67.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 202.179.68.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 203.29.222.0/24 AS22934 EBROADBANDNOW E Broadband Now Inc. 203.32.4.0/23 AS7617 APNIC-AS-2-BLOCK Asia Pacific Network Information Centre 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.76.128.0/24 AS9729 IS-AP iAdvantage Limited 203.76.224.0/24 AS9549 COMDEK-ISP-AS-AP Comdek ISP 203.86.2.0/23 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 203.132.95.0/24 AS9787 CONCEPT-AU-AP Concept Networks 203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd 203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.108.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.110.0/24 AS7598 ALPHALINK-AS-AP Alphalink Pty Limited - Melbourne, Australia 203.132.111.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.112.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS 203.132.118.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.122.0/24 AS4802 WANTREE-AS-AP Wantree Development 203.132.123.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.124.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd. 203.132.125.0/24 AS4817 TECHEX1-AS-AP Techex Primary Netblock 203.135.99.0/24 AS2687 IBM-MMD-AS IBM 204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 204.89.225.0/24 AS2495 KANREN Kansas Research and Education Network 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. 204.194.110.0/23 AS10588 ICSNET Intelligent Computer Solutions, Inc 205.150.0.0/15 AS701 ALTERNET-AS UUNET Technologies, Inc. 206.41.32.0/19 AS14824 NEWSOUTH NewSouth Communications Corp. 206.81.187.0/24 AS19194 JOVITA Sentris Network LLC 206.82.64.0/18 AS7029 ALLTELNET Alltel Information Services, Inc. 206.108.34.0/24 AS852 ASN852 Telus Advanced Communications 206.108.35.0/24 AS852 ASN852 Telus Advanced Communications 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 206.251.69.0/24 AS27429 TIL Telesat International Ltd. 207.47.39.0/24 AS816 UUNET-AS4 UUNET Technologies, Inc. 207.162.192.0/19 AS4589 EASYNET Easynet Group Plc 207.231.96.0/19 AS11194 NUNETPA NuNet Inc 208.81.187.0/24 AS19194 JOVITA Sentris Network LLC 208.104.103.0/24 AS1239 SPRINTLINK Sprint 209.169.219.0/24 AS189 GENUITY-AS189 Genuity 209.169.223.0/24 AS189 GENUITY-AS189 Genuity 209.172.0.0/18 AS7770 TRITON Triton Technologies, Inc. 209.213.32.0/19 AS10629 INTERPAC Inter-Pacific Network Services 209.213.50.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.51.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.55.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.213.56.0/24 AS10629 INTERPAC Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL Telesat International Ltd. 209.240.96.0/19 AS10815 KCNET KCnet, Inc. 209.251.0.0/19 AS11036 SISCOM SISCOM, Inc 209.251.64.0/19 AS10266 NETWAY-AS MDC, Inc. 210.213.0.0/19 AS6453 TELEGLOBE-AS Teleglobe Inc 216.18.224.0/21 AS11458 IMBRIS IMBRIS, INC. 216.18.224.0/22 AS11458 IMBRIS IMBRIS, INC. 216.18.228.0/22 AS11458 IMBRIS IMBRIS, INC. 216.36.46.0/24 AS7176 GENUITY-AS7176 Genuity 216.36.47.0/24 AS7176 GENUITY-AS7176 Genuity 216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services 218.211.0.0/16 AS4788 TMNET-AS-AP TMnet, Telekom Malaysia Please see http://www.cidr-report.org for the full report