The Cidr Report

This report has been generated at Fri Aug 22 21:48:33 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
        15-08-03 123680 87339
        16-08-03 122130 88277
        17-08-03 123717 88366
        18-08-03 123851 88406
        19-08-03 123842 88293
        20-08-03 123937 88310
        21-08-03 124096 88451
        22-08-03 124363 88483

AS Summary
         15665 Number of ASes in routing system
          6224 Number of ASes announcing only one prefix
          1482 Largest number of prefixes announced by an AS
                AS701 : ALTERNET-AS UUNET Technologies, Inc.
      73223168 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').

--- 22Aug03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description

Table 124496 88546 35950 28.9% All ASes

AS4323 623 181 442 70.9% TW-COMM Time Warner
                                               Communications, Inc.
AS701 1482 1042 440 29.7% ALTERNET-AS UUNET
                                               Technologies, Inc.
AS7018 1392 983 409 29.4% ATT-INTERNET4 AT&T WorldNet
                                               Services
AS3908 911 541 370 40.6% SUPERNETASBLK SuperNet, Inc.
AS7843 565 209 356 63.0% ADELPHIA-AS Adelphia Corp.
AS11305 358 38 320 89.4% INTERLAND-NET1 Interland
                                               Incorporated
AS6197 569 257 312 54.8% BATI-ATL BellSouth Network
                                               Solutions, Inc
AS6198 513 202 311 60.6% BATI-MIA BellSouth Network
                                               Solutions, Inc
AS1221 1041 731 310 29.8% ASN-TELSTRA Telstra Pty Ltd
AS4355 404 112 292 72.3% ERMS-EARTHLNK EARTHLINK, INC
AS6347 357 91 266 74.5% DIAMOND SAVVIS Communications
                                               Corporation
AS1239 904 647 257 28.4% SPRINTLINK Sprint
AS27364 316 68 248 78.5% ACS-INTERNET Armstrong Cable
                                               Services
AS25844 256 14 242 94.5% SKADDEN1 Skadden, Arps, Slate,
                                               Meagher & Flom LLP
AS17676 251 25 226 90.0% GIGAINFRA Softbank BB Corp.
AS22773 243 20 223 91.8% CCINET-2 Cox Communications
                                               Inc. Atlanta
AS209 517 300 217 42.0% ASN-QWEST Qwest
AS4134 318 123 195 61.3% CHINANET-BACKBONE
                                               No.31,Jin-rong Street
AS705 483 302 181 37.5% ALTERNET-AS UUNET
                                               Technologies, Inc.
AS6140 314 137 177 56.4% IMPSAT-USA ImpSat
AS6327 200 26 174 87.0% SHAW Shaw Communications Inc.
AS2386 375 203 172 45.9% INS-AS AT&T Data
                                               Communications Services
AS7132 410 240 170 41.5% SBIS-AS SBC Internet Services
                                               - Southwest
AS2048 256 87 169 66.0% LANET-1 State of Louisiana
AS17557 303 136 167 55.1% PKTELECOM-AS-AP Pakistan
                                               Telecom
AS14654 165 3 162 98.2% WAYPORT Wayport
AS5786 165 5 160 97.0% UPRENET University of Puerto
                                               Rico
AS3602 233 85 148 63.5% SPRINT-CA-AS Sprint Canada
                                               Inc.
AS4538 168 21 147 87.5% ERX-CERNET-BKB China Education
                                               and Research Network Center
AS20115 474 327 147 31.0% CHARTER-NET-HKY-NC Charter
                                               Communications

Total 14566 7156 7410 50.9% 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.
        66.15.128.0/24 AS3356 LEVEL3 Level 3 Communications, LLC
        66.41.192.0/18 AS13367 ATT-BBND-B AT&T Broadband
        69.36.224.0/19 AS8121 TCH TCH Network Services
        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
        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
        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
        192.88.99.0/24 AS3246 SONGNETWORKS Song Networks
        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
        192.153.136.0/21 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
        192.243.32.0/23 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
        199.114.140.0/24 AS3544 ITSDN-U7 DISA/UNRRA
        199.114.152.0/24 AS1913 DLA4 Defense Logistics Agency
        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
        199.166.18.0/24 AS701 ALTERNET-AS UUNET Technologies, Inc.
        199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc.
        202.0.180.0/24 AS4058 APNIC-4058 Asia Pacific Network Information Centre
        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 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
        202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd.
        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
        202.89.200.0/24 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 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
        202.130.240.0/21 AS4808 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
        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 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
        202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
        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
        202.148.192.0/20 AS9942 COMINDICO-AP COMindico Australia
        202.148.208.0/21 AS9942 COMINDICO-AP COMindico Australia
        202.148.216.0/22 AS9942 COMINDICO-AP COMindico Australia
        202.148.220.0/23 AS9942 COMINDICO-AP COMindico Australia
        202.148.222.0/24 AS9942 COMINDICO-AP COMindico Australia
        202.148.223.0/24 AS705 ALTERNET-AS UUNET Technologies, Inc.
        202.161.0.0/19 AS10097 FLOWCOM flow communications level 2 541 kent st sydney nsw 2000
        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
        202.189.234.0/23 AS9658 ETPI-IDS-AS-AP Eastern Telecoms Phils., Inc.
        203.10.17.0/24 AS9266 VIPER-AU-AP Vipernet
        203.10.18.0/24 AS9266 VIPER-AU-AP Vipernet
        203.10.19.0/24 AS9266 VIPER-AU-AP Vipernet
        203.10.20.0/24 AS9266 VIPER-AU-AP Vipernet
        203.10.21.0/24 AS9266 VIPER-AU-AP Vipernet
        203.10.22.0/24 AS9266 VIPER-AU-AP Vipernet
        203.10.23.0/24 AS9266 VIPER-AU-AP Vipernet
        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 APNIC-4058 Asia Pacific Network Information Centre
        203.90.192.0/20 AS9658 ETPI-IDS-AS-AP Eastern Telecoms Phils., Inc.
        203.129.126.0/24 AS7473 SINGTEL-AS-AP Singapore Telecom
        203.129.127.0/24 AS7473 SINGTEL-AS-AP Singapore Telecom
        203.132.95.0/24 AS9787 CONCEPT-AU-AP Concept Networks
        203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd
        203.132.99.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited
        203.132.102.0/24 AS9398 ARACHNET-AS-AP Arachnet
        203.132.103.0/24 AS9663 KARRATHA-AS-AP Karratha Internet Support Services
        203.132.104.0/24 AS9663 KARRATHA-AS-AP Karratha Internet Support Services
        203.132.105.0/24 AS9663 KARRATHA-AS-AP Karratha Internet Support Services
        203.132.106.0/24 AS9398 ARACHNET-AS-AP Arachnet
        203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
        203.132.108.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
        203.132.109.0/24 AS10141 CALOUNDRA-AS-AP Caloundra.net
        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
        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 AS3956 TX-METRO Texas Metronet
        204.52.232.0/24 AS7177 DFWNET DFW Internet Services, Inc.
        204.89.225.0/24 AS2495 KANREN Kansas Research and Education Network
        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
        209.104.252.0/22 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.
        209.169.219.0/24 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
        209.213.160.0/19 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.
        210.213.0.0/19 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