The Cidr Report

This report has been generated at Fri May 9 21:46:11 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
        02-05-03 122251 86865
        03-05-03 122319 87066
        04-05-03 122363 87067
        05-05-03 122379 87079
        06-05-03 122340 87095
        07-05-03 122432 86820
        08-05-03 122376 86965
        09-05-03 122433 86761

AS Summary
         15091 Number of ASes in routing system
          5981 Number of ASes announcing only one prefix
          1529 Largest number of prefixes announced by an AS
                AS701 : ALTERNET-AS UUNET Technologies, Inc.
      73183232 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').

--- 09May03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description

Table 122403 86785 35618 29.1% All ASes

AS4151 1083 77 1006 92.9% USDA-1 USDA
AS7132 963 208 755 78.4% SBIS-AS SBC Internet Services
                                               - Southwest
AS7843 655 169 486 74.2% ADELPHIA-AS Adelphia Corp.
AS701 1529 1089 440 28.8% ALTERNET-AS UUNET
                                               Technologies, Inc.
AS4323 585 172 413 70.6% TW-COMM Time Warner
                                               Communications, Inc.
AS7018 1331 934 397 29.8% ATT-INTERNET4 AT&T WorldNet
                                               Services
AS3908 896 526 370 41.3% SUPERNETASBLK SuperNet, Inc.
AS1221 1091 779 312 28.6% ASN-TELSTRA Telstra Pty Ltd
AS705 533 237 296 55.5% ALTERNET-AS UUNET
                                               Technologies, Inc.
AS1239 970 682 288 29.7% SPRINTLINK Sprint
AS22927 298 14 284 95.3% AR-TEAR2-LACNIC TELEFONICA DE
                                               ARGENTINA
AS4355 393 111 282 71.8% ERMS-EARTHLNK EARTHLINK, INC
AS6198 465 183 282 60.6% BATI-MIA BellSouth Network
                                               Solutions, Inc
AS6197 483 205 278 57.6% BATI-ATL BellSouth Network
                                               Solutions, Inc
AS4814 294 21 273 92.9% CHINANET-BEIJING-AP China
                                               Telecom (Group)
AS2386 546 314 232 42.5% INS-AS AT&T Data
                                               Communications Services
AS17676 245 22 223 91.0% GIGAINFRA XTAGE CORPORATION
AS27364 270 63 207 76.7% ACS-INTERNET Armstrong Cable
                                               Services
AS22773 209 8 201 96.2% CCINET-2 Cox Communications
                                               Inc. Atlanta
AS209 489 298 191 39.1% ASN-QWEST Qwest
AS3561 505 327 178 35.2% CWUSA Cable & Wireless USA
AS2048 262 88 174 66.4% LANET-1 State of Louisiana
AS6347 370 198 172 46.5% DIAMOND SAVVIS Communications
                                               Corporation
AS690 482 315 167 34.6% MERIT-AS-27 Merit Network Inc.
AS6327 189 23 166 87.8% SHAWFIBER Shaw Fiberlink
                                               Limited
AS4200 174 21 153 87.9% AGIS-NET Apex Global
                                               Information Services, Inc.
AS17557 371 219 152 41.0% PKTELECOM-AS-AP Pakistan
                                               Telecom
AS2686 256 106 150 58.6% AS2686 AT&T Global Network
                                               Services - EMEA
AS6140 293 143 150 51.2% IMPSAT-USA ImpSat
AS3602 225 79 146 64.9% SPRINT-CA-AS Sprint Canada
                                               Inc.

Total 16455 7631 8824 53.6% 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
        24.180.60.0/24 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
        68.192.0.0/14 AS6128 CABLE-NET-1 Cablevision Systems Corp.
        69.11.0.0/20 AS803 SASKTEL SaskTel
        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
        155.32.0.0/12 AS1 GNTY-1 Genuity
        155.36.0.0/16 AS14751 CONVERSENT Conversent Communications
        158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA
        165.212.0.0/16 AS7424 USANET USA.Net
        166.16.0.0/16 AS3751 SNET-AS Southern New England Telephone
        171.64.0.0/10 AS1 GNTY-1 Genuity
        192.16.52.0/24 AS1239 SPRINTLINK Sprint
        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.
        200.14.32.0/22 AS11751 BR-ICEP-LACNIC Instituto Cyber de Ensino e Pesquisa
        200.14.34.0/23 AS11751 BR-ICEP-LACNIC Instituto Cyber de Ensino e Pesquisa
        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
        202.41.160.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
        202.41.161.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
        202.41.163.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
        202.41.164.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
        202.41.165.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
        202.44.112.0/20 AS17458 CWNETDG-IO-AP Cable and Wireless
        202.79.0.0/20 AS4637 REACH Reach Network Border AS
        202.89.200.0/24 AS7473 SINGTEL-AS-AP Singapore Telecom
        202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
        202.93.64.0/19 AS9425 I-NEXT-AS-AP Inter.net Philippines border AS
        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
        202.159.128.0/17 AS4622 UNSPECIFIED IndoInternet PT.
        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
        203.161.39.0/24 AS4768 CLIX-NZ CLEAR Internet Exchange
        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.
        205.173.248.0/21 AS2548 ALGX-ATCW-AS Allegiance Telecom Companies Worldwide
        205.233.139.0/24 AS15290 ATTCA-15290 AT&T Canada Telecom Services Company
        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.
        206.191.64.0/18 AS15290 ATTCA-15290 AT&T Canada Telecom Services Company
        206.251.69.0/24 AS10494 AAI Accurate Automation, Inc.
        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.
        208.66.66.0/24 AS14985 VEROXITY Veroxity Technology Partners, Inc.
        208.81.187.0/24 AS19194 JOVITA Sentris Network LLC
        208.101.8.0/24 AS3561 CWUSA Cable & Wireless USA
        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
        209.222.137.0/24 AS10494 AAI Accurate Automation, Inc.
        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.
        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.
        216.81.32.0/20 AS3356 LEVEL3 Level 3 Communications, LLC
        216.81.64.0/20 AS3356 LEVEL3 Level 3 Communications, LLC
        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.
        216.153.96.0/20 AS1239 SPRINTLINK Sprint
        216.211.177.0/24 AS14473 KNET KNet, Inc.
        216.226.108.0/22 AS3602 SPRINT-CA-AS Sprint Canada Inc.
        217.117.117.0/24 AS2007 INFONET3 INFONET

Please see http://www.cidr-report.org for the full report