This report has been generated at Wed Jun 18 23:46:42 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 11-06-03 122581 87288 12-06-03 122787 87267 13-06-03 122864 87360 14-06-03 122926 87329 15-06-03 122763 87312 16-06-03 122762 87326 17-06-03 122762 87406 18-06-03 122964 87441 AS Summary 15294 Number of ASes in routing system 6032 Number of ASes announcing only one prefix 1515 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73223424 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'). --- 18Jun03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 122930 87459 35471 28.9% All ASes AS7132 1001 228 773 77.2% SBIS-AS SBC Internet Services - Southwest AS11305 647 137 510 78.8% INTERLAND-NET1 Interland Incorporated AS701 1515 1071 444 29.3% ALTERNET-AS UUNET Technologies, Inc. AS7843 613 178 435 71.0% ADELPHIA-AS Adelphia Corp. AS4323 601 177 424 70.5% TW-COMM Time Warner Communications, Inc. AS7018 1337 928 409 30.6% ATT-INTERNET4 AT&T WorldNet Services AS3908 893 524 369 41.3% SUPERNETASBLK SuperNet, Inc. AS4755 404 78 326 80.7% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS1221 1071 764 307 28.7% ASN-TELSTRA Telstra Pty Ltd AS6197 501 209 292 58.3% BATI-ATL BellSouth Network Solutions, Inc AS4355 398 111 287 72.1% ERMS-EARTHLNK EARTHLINK, INC AS6198 470 185 285 60.6% BATI-MIA BellSouth Network Solutions, Inc AS22927 298 15 283 95.0% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS1239 960 678 282 29.4% SPRINTLINK Sprint AS6347 367 92 275 74.9% DIAMOND SAVVIS Communications Corporation AS27364 319 88 231 72.4% ACS-INTERNET Armstrong Cable Services AS17676 250 24 226 90.4% GIGAINFRA XTAGE CORPORATION AS22773 218 8 210 96.3% CCINET-2 Cox Communications Inc. Atlanta AS17557 344 149 195 56.7% PKTELECOM-AS-AP Pakistan Telecom AS209 497 303 194 39.0% ASN-QWEST Qwest AS705 509 332 177 34.8% ALTERNET-AS UUNET Technologies, Inc. AS2048 260 88 172 66.2% LANET-1 State of Louisiana AS2386 402 234 168 41.8% INS-AS AT&T Data Communications Services AS6327 190 24 166 87.4% SHAWFIBER Shaw Fiberlink Limited AS13601 205 46 159 77.6% ASN-INNERHOST Innerhost, Inc. AS690 450 293 157 34.9% MERIT-AS-27 Merit Network Inc. AS20115 462 310 152 32.9% CHARTER-NET-HKY-NC Charter Communications AS3602 227 79 148 65.2% SPRINT-CA-AS Sprint Canada Inc. AS2686 257 112 145 56.4% AS2686 AT&T Global Network Services - EMEA AS6140 297 154 143 48.1% IMPSAT-USA ImpSat Total 15963 7619 8344 52.3% Top 30 total Possible Bogus Routes 24.2.128.0/21 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.7.10.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.11.98.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.14.197.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.18.132.0/23 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.23.8.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.119.0.0/16 AS11492 CABLEONE CABLE ONE 24.119.66.0/24 AS11492 CABLEONE CABLE ONE 24.180.60.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.185.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.186.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.187.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.188.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.189.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.183.191.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 24.223.128.0/17 AS11060 NEO-RR-COM Time Warner Cable Northeast Ohio 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 64.30.64.0/19 AS14900 USLEC-CORP-1 USLEC Corp. 65.2.165.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.145.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.146.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.147.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.150.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.6.151.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.8.0.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.11.200.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.11.201.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 65.15.117.0/24 AS6478 ATT-INTERNET3 AT&T WorldNet Services 66.41.192.0/18 AS13367 ATT-BBND-B AT&T Broadband 69.39.64.0/19 AS12129 123NET Internet 123 69.55.64.0/20 AS11440 NETSVILLE Netsville, Inc. 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 140.240.0.0/13 AS1 GNTY-1 Genuity 158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA 165.212.0.0/16 AS7424 USANET USA.Net 166.16.0.0/16 AS7132 SBIS-AS SBC Internet Services - Southwest 171.64.0.0/10 AS1 GNTY-1 Genuity 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. 192.83.16.0/20 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 192.136.79.0/24 AS719 AS719 LANLINK autonomous system 192.153.136.0/21 AS568 SUMNET-AS DISO-UNRRA 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 192.228.0.0/16 AS4637 REACH Reach Network Border AS 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 198.98.8.0/21 AS3701 NERONET Oregon Joint Graduate Schools of Engineering 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 ATTCA-15290 AT&T Canada Telecom Services Company 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 199.79.32.0/20 AS3701 NERONET Oregon Joint Graduate Schools of Engineering 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 199.120.32.0/19 AS16582 NEXTLEVELINTERNET NEXTLEVEL INTERNET, INC. 199.121.0.0/16 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 199.167.25.0/24 AS701 ALTERNET-AS UUNET Technologies, Inc. 199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc. 202.3.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.145.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.146.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.152.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.154.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.155.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.156.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.157.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.3.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 202.4.252.0/22 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd. 202.6.96.0/24 AS4761 INDOSAT1-AP INDOSATNET-ASN 202.6.97.0/24 AS4761 INDOSAT1-AP INDOSATNET-ASN 202.6.99.0/24 AS4761 INDOSAT1-AP INDOSATNET-ASN 202.8.128.0/19 AS202 GENUITY-AS199-203 Genuity 202.44.112.0/20 AS17458 CWNETDG-IO-AP Cable and Wireless 202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider 202.130.224.0/20 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.130.240.0/21 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.130.248.0/21 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.130.248.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 202.130.252.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 202.136.254.0/23 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.136.254.0/24 AS4808 CNCGROUP-BJ CNCGROUP-BJ 202.140.230.0/23 AS9466 UUNET-JP-AP UUNET Japan Limited 202.140.232.0/23 AS9466 UUNET-JP-AP UUNET Japan Limited 202.140.234.0/24 AS9466 UUNET-JP-AP UUNET Japan Limited 202.140.235.0/24 AS9466 UUNET-JP-AP UUNET Japan Limited 202.142.130.0/23 AS17820 DIL-AP DIRECT INTERNET LTD. 202.142.132.0/22 AS17820 DIL-AP DIRECT INTERNET LTD. 202.143.48.0/21 AS4795 INDOSAT2-ID-AP INDOSATNET-ASN 202.143.56.0/21 AS4795 INDOSAT2-ID-AP INDOSATNET-ASN 202.161.0.0/19 AS10097 FLOWCOM flow communications level 2 541 kent st sydney nsw 2000 202.161.0.0/21 AS4634 -No Whois Entry- 202.161.8.0/21 AS4634 -No Whois Entry- 202.164.192.0/19 AS7599 IPXC-AS-AP IP Exchange 202.165.0.0/19 AS9443 INTERNETPRIMUS-AS-AP Primus Telecommunications 202.173.32.0/19 AS9671 APNIC-AS-3-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 203.78.125.0/24 AS17653 PCM-HK-AP Pacific Century Matrix 203.86.2.0/23 AS4058 APNIC-4058 Asia Pacific Network Information Centre 203.90.192.0/20 AS9658 ETPI-IDS-AS-AP Eastern Telecoms Phils., Inc. 203.135.99.0/24 AS2687 IBM-MMD-AS IBM 203.135.224.0/19 AS4058 APNIC-4058 Asia Pacific Network Information Centre 204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 204.29.189.0/24 AS11755 WAYMARKCOMM Waymark Internet Services, Inc. 204.52.232.0/24 AS7177 DFWNET DFW Internet Services, Inc. 204.89.225.0/24 AS2495 KANREN Kansas Research and Education Network 204.154.240.0/21 AS11572 MEDIACOM Mediacom,llc / RidgeNet 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 206.126.0.0/19 AS5750 FLEXNET-HAWAII FlexNet Inc. 206.167.57.0/24 AS376 RISQ-AS Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ATTCA-15290 AT&T Canada Telecom Services Company 206.251.69.0/24 AS27429 TIL Telesat International Ltd. 207.47.39.0/24 AS816 UUNET-AS4 UUNET Technologies, Inc. 207.92.0.0/14 AS2551 ICG ICG NetAhead, Inc. 207.162.192.0/19 AS4589 EASYNET Easynet Group Plc 207.231.96.0/19 AS11194 NUNETPA NuNet Inc 208.65.232.0/23 AS701 ALTERNET-AS UUNET Technologies, Inc. 208.81.187.0/24 AS19194 JOVITA Sentris Network LLC 208.104.103.0/24 AS1239 SPRINTLINK Sprint 209.104.198.0/24 AS6137 SISNA SISNA, Inc. 209.104.199.0/24 AS6137 SISNA SISNA, Inc. 209.104.218.0/24 AS6137 SISNA SISNA, Inc. 209.104.219.0/24 AS6137 SISNA SISNA, Inc. 209.104.252.0/22 AS12030 PACIFIC-ONLINE-PON Pacific Online Services 209.108.0.0/14 AS2551 ICG ICG NetAhead, Inc. 209.151.128.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc. 209.160.70.0/23 AS13415 LUMIX Lumix Communications, Inc. 209.160.73.0/24 AS13415 LUMIX Lumix Communications, Inc. 209.160.209.0/24 AS13415 LUMIX Lumix Communications, Inc. 209.160.210.0/24 AS13415 LUMIX Lumix Communications, Inc. 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 209.213.160.0/19 AS4355 ERMS-EARTHLNK EARTHLINK, INC 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. 210.4.20.0/22 AS10095 AS10095 Segmentation Fault 210.4.60.0/24 AS10095 AS10095 Segmentation Fault 210.4.61.0/24 AS10095 AS10095 Segmentation Fault 211.27.156.0/24 AS9768 PUBNET1-AS KT 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. 216.47.32.0/19 AS11304 SPLUS Solutions Plus Inc. 216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services 216.115.178.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.179.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.182.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.183.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.184.0/23 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.186.0/23 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.186.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.189.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.190.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.115.191.0/24 AS11676 ACSBPS Affiliated Computing Services Business ProcessSolutions 216.153.0.0/17 AS6203 ISDN-NET ISDN-Net Inc. 216.211.177.0/24 AS14473 KNET KNet, Inc. 216.226.108.0/22 AS3602 SPRINT-CA-AS Sprint Canada Inc. Please see http://www.cidr-report.org for the full report