This report has been generated at Wed Jul 23 23:46:43 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 16-07-03 123922 88227 17-07-03 123979 88183 18-07-03 124001 88134 19-07-03 123979 88122 20-07-03 123942 88071 21-07-03 123927 88092 22-07-03 123899 88111 23-07-03 123873 88191 AS Summary 15479 Number of ASes in routing system 6114 Number of ASes announcing only one prefix 1493 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73223680 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'). --- 23Jul03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 124080 88230 35850 28.9% All ASes AS7132 845 234 611 72.3% SBIS-AS SBC Internet Services - Southwest AS701 1493 1051 442 29.6% ALTERNET-AS UUNET Technologies, Inc. AS4323 606 176 430 71.0% TW-COMM Time Warner Communications, Inc. AS11305 563 147 416 73.9% INTERLAND-NET1 Interland Incorporated AS7018 1346 937 409 30.4% ATT-INTERNET4 AT&T WorldNet Services AS702 1005 611 394 39.2% ALTERNET-AS UUNET Technologies, Inc. AS3908 890 523 367 41.2% SUPERNETASBLK SuperNet, Inc. AS7843 598 243 355 59.4% ADELPHIA-AS Adelphia Corp. AS1221 1054 745 309 29.3% ASN-TELSTRA Telstra Pty Ltd AS6198 483 186 297 61.5% BATI-MIA BellSouth Network Solutions, Inc AS6197 542 246 296 54.6% BATI-ATL BellSouth Network Solutions, Inc AS1239 967 672 295 30.5% SPRINTLINK Sprint AS4355 399 112 287 71.9% ERMS-EARTHLNK EARTHLINK, INC AS6347 354 95 259 73.2% DIAMOND SAVVIS Communications Corporation AS25844 257 9 248 96.5% SKADDEN1 Skadden, Arps, Slate, Meagher & Flom LLP AS27364 317 84 233 73.5% ACS-INTERNET Armstrong Cable Services AS17676 250 24 226 90.4% GIGAINFRA Softbank BB Corp. AS22773 231 11 220 95.2% CCINET-2 Cox Communications Inc. Atlanta AS209 522 309 213 40.8% ASN-QWEST Qwest AS705 479 303 176 36.7% ALTERNET-AS UUNET Technologies, Inc. AS6327 199 25 174 87.4% SHAWFIBER Shaw Fiberlink Limited AS2386 398 229 169 42.5% INS-AS AT&T Data Communications Services AS2048 257 88 169 65.8% LANET-1 State of Louisiana AS17557 331 163 168 50.8% PKTELECOM-AS-AP Pakistan Telecom AS14654 160 3 157 98.1% WAYPORT Wayport AS690 445 295 150 33.7% MERIT-AS-27 Merit Network Inc. AS3602 229 82 147 64.2% SPRINT-CA-AS Sprint Canada Inc. AS20115 470 324 146 31.1% CHARTER-NET-HKY-NC Charter Communications AS6140 297 158 139 46.8% IMPSAT-USA ImpSat AS6517 201 62 139 69.2% YIPESCOM Yipes Communications, Inc. Total 16188 8147 8041 49.7% Top 30 total Possible Bogus Routes 24.119.0.0/16 AS11492 CABLEONE CABLE ONE 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. 64.38.96.0/19 AS19654 HOSTING-NETWORK HOSTING-NETWORK, INC. 64.127.128.0/17 AS19654 HOSTING-NETWORK HOSTING-NETWORK, INC. 66.41.192.0/18 AS13367 ATT-BBND-B AT&T Broadband 66.186.192.0/19 AS19654 HOSTING-NETWORK HOSTING-NETWORK, INC. 66.216.0.0/18 AS19654 HOSTING-NETWORK HOSTING-NETWORK, INC. 81.91.160.0/20 AS8763 DENIC-AS DENIC eG 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. 193.0.0.0/21 AS3333 RIPE-NCC-AS RIPE NCC 193.42.2.0/23 AS12734 AS12734 Fiat Group Autonomous System 193.108.205.0/24 AS21006 PDR-AS PDR AS for announcing own routes 193.108.226.0/23 AS20934 ABCINTERNET ISP MAKET Autonomous system 193.110.28.0/22 AS24864 RIZit-AS RIZ IT Backbone AS 193.149.128.0/18 AS8220 COLT COLT Internet - International Backbone - www.colt.net 193.150.192.0/18 AS6830 AS6830 UPC Distribution Services 193.188.192.0/22 AS5561 ELENDER-AS ELENDER-AS 193.193.176.0/22 AS8741 AS8741 ECORE AS - ecore Kommunikations AG 193.201.28.0/23 AS24796 NaMeX-IxP Nautilus Mediterranean Exchange Point 193.201.40.0/24 AS24796 NaMeX-IxP Nautilus Mediterranean Exchange Point 193.202.88.0/23 AS8990 AS8990 AHRT-HU 193.219.2.0/23 AS24645 AS-ITI Informacijos Tiltas, Ltd. 193.219.15.0/24 AS8881 KOMTEL KomTel routing policies 193.222.126.0/23 AS3303 SWISSCOM Swisscom Enterprise Solutions Ltd 193.222.192.0/19 AS21102 ASN-KIOSKAG KIOSK Autonomous System 193.242.80.0/20 AS286 AS286 KPN Eurorings Backbone AS 194.5.224.0/23 AS15557 LDCOMNET LDCOM NETWORKS 194.6.224.0/21 AS6713 IAM-AS Itissalat Al-MAGHRIB 194.13.0.0/17 AS1103 SURFNET-NL SURFnet, The Netherlands 194.15.138.0/23 AS13128 LIT-BERLIN-AS Landesamt fuer Informationstechnik, Berlin 194.15.152.0/24 AS15717 TESION tesion Telekommunikation GmbH 194.15.228.0/23 AS3320 AS3320 Deutsche Telekom AG 194.26.110.0/23 AS9013 AS9013 Knoware Autonomous System 194.26.112.0/23 AS9013 AS9013 Knoware Autonomous System 194.42.208.0/20 AS702 ALTERNET-AS UUNET Technologies, Inc. 194.48.228.0/22 AS1901 EUNETAT-AS EUnet Austria 194.56.248.0/23 AS6893 CABLE-AND-WIRELESS-SWITZERLAND Cable & Wireless Global (Switzerland) Ltd 194.59.176.0/20 AS1273 ECRC Cable & Wireless Deutschland GmbH 194.104.192.0/19 AS1136 KPN KPN Telecom OVN IO 194.104.224.0/19 AS1103 SURFNET-NL SURFnet, The Netherlands 194.105.57.0/24 AS1267 ASN-INFOSTRADA Infostrada S.p.A. 194.124.242.0/23 AS3303 SWISSCOM Swisscom Enterprise Solutions Ltd 194.149.64.0/21 AS9056 PSN-AS Pushchino Research Center of RAS Autonomous System 195.35.114.0/23 AS12525 AS12525 INTERNET Ltd. Autonomous System 195.42.252.0/22 AS13282 AS13282 Sparkassen-Informatik-Services West GmbH 195.80.224.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.225.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.226.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.227.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.228.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.229.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.231.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.80.233.0/24 AS12654 AS12654 RIPE NCC RIS Project. 195.135.220.0/22 AS9072 AS9072 NEFkom Telekommunikation GmbH & Co. KG 195.246.216.0/22 AS8638 ASTROPOLYS AS Citykom Muenster GmbH 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 199.114.140.0/24 AS3544 ITSDN-U7 DISA/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 199.189.32.0/19 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 202.10.72.0/21 AS9716 AUSTAR-AS-AP Austar Entertainement 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 202.130.248.0/22 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 202.142.130.0/23 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 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 203.171.96.0/19 AS703 ALTERNET-AS UUNET Technologies, Inc. 203.171.102.0/24 AS703 ALTERNET-AS UUNET Technologies, Inc. 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. 209.160.73.0/24 AS13415 LUMIX Lumix Communications, Inc. 209.160.209.0/24 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 -No Whois Entry- 210.4.60.0/24 AS10095 -No Whois Entry- 210.4.61.0/24 AS10095 -No Whois Entry- 210.213.0.0/19 AS6453 TELEGLOBE-AS Teleglobe Inc 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 216.153.0.0/17 AS6203 ISDN-NET ISDN-Net Inc. 216.226.108.0/22 AS3602 SPRINT-CA-AS Sprint Canada Inc. Please see http://www.cidr-report.org for the full report