This report has been generated at Fri May 21 21:11:33 2010 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date Prefixes CIDR Agg
14-05-10 323865 199699
15-05-10 324098 199496
16-05-10 323596 199360
17-05-10 323452 199701
18-05-10 323785 199621
19-05-10 323719 199654
20-05-10 323706 199032
21-05-10 323888 199190
AS Summary
34458 Number of ASes in routing system
14643 Number of ASes announcing only one prefix
4434 Largest number of prefixes announced by an AS
AS4323 : TWTC - tw telecom holdings, inc.
95566912 Largest address span announced by an AS (/32s)
AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street
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').
--- 21May10 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 324007 199137 124870 38.5% All ASes
AS6389 3932 293 3639 92.5% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 4434 1053 3381 76.3% TWTC - tw telecom holdings,
inc.
AS4766 1848 497 1351 73.1% KIXS-AS-KR Korea Telecom
AS4755 1306 216 1090 83.5% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS22773 1154 69 1085 94.0% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS18566 1059 34 1025 96.8% COVAD - Covad Communications
Co.
AS7545 1217 253 964 79.2% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS17488 1316 360 956 72.6% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS6478 1248 344 904 72.4% ATT-INTERNET3 - AT&T WorldNet
Services
AS8151 1551 649 902 58.2% Uninet S.A. de C.V.
AS19262 1122 271 851 75.8% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS8452 1257 443 814 64.8% TEDATA TEDATA
AS10620 1042 230 812 77.9% Telmex Colombia S.A.
AS5668 847 143 704 83.1% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS24560 900 268 632 70.2% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7303 730 115 615 84.2% Telecom Argentina S.A.
AS4808 845 247 598 70.8% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS4804 678 84 594 87.6% MPX-AS Microplex PTY LTD
AS1785 1784 1193 591 33.1% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS7018 1539 981 558 36.3% ATT-INTERNET4 - AT&T WorldNet
Services
AS35805 627 94 533 85.0% UTG-AS United Telecom AS
AS4780 662 167 495 74.8% SEEDNET Digital United Inc.
AS17676 571 80 491 86.0% GIGAINFRA Softbank BB Corp.
AS3356 1192 706 486 40.8% LEVEL3 Level 3 Communications
AS9443 558 74 484 86.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS33588 611 160 451 73.8% BRESNAN-AS - Bresnan
Communications, LLC.
AS7738 477 30 447 93.7% Telecomunicacoes da Bahia S.A.
AS7011 1111 666 445 40.1% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS28573 875 431 444 50.7% NET Servicos de Comunicao S.A.
AS36992 643 209 434 67.5% ETISALAT-MISR
Total 37136 10360 26776 72.1% Top 30 total
Possible Bogus Routes
31.0.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
31.1.0.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
31.1.24.0/24 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
41.223.188.0/24 AS22351 INTELSAT Intelsat Global BGP Routing Policy
41.223.196.0/24 AS36990
41.223.197.0/24 AS36990
41.223.198.0/24 AS36990
41.223.199.0/24 AS36990
62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV
62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV
63.140.213.0/24 AS22555 UTC - Universal Talkware Corporation
63.143.251.0/24 AS22555 UTC - Universal Talkware Corporation
64.20.80.0/20 AS40028 SPD-NETWORK-1 - SPD NETWORK
64.82.128.0/19 AS16617 COMMUNITYISP - CISP
64.82.160.0/19 AS16617 COMMUNITYISP - CISP
66.128.38.0/24 AS15246 Telecomunicaciones Satelitales Telesat S.A.
66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION
66.206.32.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board
66.206.33.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board
66.206.34.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board
66.206.35.0/24 AS17787 PSEB-AS-PK Pakistan Software Export Board
66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
66.207.32.0/20 AS23011
66.230.240.0/20 AS27286
66.241.112.0/20 AS21547 REVNETS - Revolution Networks
66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC
69.6.80.0/24 AS13442
69.6.81.0/24 AS13442
69.80.224.0/19 AS19166 ACRONOC - ACRONOC INC
71.19.134.0/23 AS3313 INET-AS I.NET S.p.A.
71.19.160.0/23 AS4648 NZIX-2 Netgate
78.41.80.0/24 AS29158 DE-IP69 Tux-Service
78.41.81.0/24 AS29158 DE-IP69 Tux-Service
78.41.82.0/24 AS29158 DE-IP69 Tux-Service
78.41.83.0/24 AS29158 DE-IP69 Tux-Service
78.41.84.0/24 AS29158 DE-IP69 Tux-Service
78.41.86.0/24 AS29158 DE-IP69 Tux-Service
78.41.87.0/24 AS29158 DE-IP69 Tux-Service
80.88.10.0/24 AS33774 DJAWEB
80.88.12.0/24 AS33779 wataniya-telecom-as
110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas
110.173.64.0/19 AS37963 CNNIC-ALIBABA-CN-NET-AP Alibaba (China) Technology Co., Ltd.
117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
119.160.200.0/23 AS45122
121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
121.50.168.0/21 AS9931 CAT-AP The Communication Authoity of Thailand, CAT
158.222.70.0/23 AS6137 SISNA - SISNA, Inc.
158.222.72.0/23 AS6137 SISNA - SISNA, Inc.
158.222.224.0/20 AS19864 O1COMM - O1 COMMUNICATIONS
158.222.224.0/22 AS19864 O1COMM - O1 COMMUNICATIONS
158.222.229.0/24 AS19864 O1COMM - O1 COMMUNICATIONS
176.0.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
176.1.0.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
176.1.24.0/24 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
190.102.32.0/20 AS30058 ACTIVO-SYSTEMS-AS30058 ACTIVO-SYSTEMS-AS30058
192.9.0.0/16 AS11479 BRM-SUN-AS - Sun Microsystems, Inc
192.64.85.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network
192.69.108.0/24 AS1759 TSF-IP-CORE TeliaSonera Finland IP Network
192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada
192.101.45.0/24 AS2905 TICSA-ASN
192.101.46.0/24 AS6503 Axtel, S.A.B. de C. V.
192.101.64.0/21 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe
192.101.70.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
192.101.71.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe
192.101.74.0/24 AS1239 SPRINTLINK - Sprint
192.124.248.0/23 AS680 DFN-IP service X-WiN
192.124.252.0/22 AS680 DFN-IP service X-WiN
192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
192.139.3.0/24 AS23184 PERSONA - PERSONA COMMUNICATIONS INC.
192.154.32.0/19 AS81 NCREN - MCNC
192.154.64.0/19 AS81 NCREN - MCNC
192.188.208.0/20 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
196.2.224.0/22 AS24863 LINKdotNET-AS
196.6.108.0/24 AS5713 SAIX-NET
196.13.201.0/24 AS2018 TENET-1
196.13.202.0/24 AS2018 TENET-1
196.13.203.0/24 AS2018 TENET-1
196.13.204.0/24 AS2018 TENET-1
196.110.105.0/24 AS8513 SKYVISION SkyVision Network Services
196.201.248.0/24 AS30991 SAHANNET Sahannet AS Network
196.201.249.0/24 AS30991 SAHANNET Sahannet AS Network
196.201.250.0/24 AS30991 SAHANNET Sahannet AS Network
196.201.251.0/24 AS30991 SAHANNET Sahannet AS Network
196.201.253.0/24 AS30991 SAHANNET Sahannet AS Network
196.201.255.0/24 AS30991 SAHANNET Sahannet AS Network
196.202.224.0/21 AS8818 TELE Greenland Autonomous System
198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider
198.23.26.0/24 AS33052 VZUNET - Verizon Data Services LLC
198.73.210.0/24 AS21570 ACI-1 - Accelerated Connections Inc.
198.74.38.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services
198.74.39.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services
198.74.40.0/24 AS16966 SBCIDC-LSAN03 - AT&T Internet Services
198.97.72.0/21 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
198.97.96.0/19 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
198.97.240.0/20 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
198.135.236.0/24 AS4358 XNET - XNet Information Systems, Inc.
198.161.87.0/24 AS6539 GT-BELL - Bell Canada
198.163.214.0/24 AS21804 ACCESS-SK - Access Communications Co-operative Limited
198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc.
198.168.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
198.169.0.0/16 AS803 SASKTEL - Saskatchewan Telecommunications
198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services
198.182.235.0/24 AS3356 LEVEL3 Level 3 Communications
199.10.0.0/16 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
199.16.32.0/19 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
199.26.183.0/24 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
199.121.0.0/16 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
199.123.0.0/18 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
199.123.16.0/20 AS27064 DNIC-ASBLK-27032-27159 - DoD Network Information Center
199.185.130.0/23 AS19662 UNISERVE-ONLINE - Uniserve On Line
199.202.0.0/16 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
199.202.216.0/21 AS577 BACOM - Bell Canada
199.233.92.0/24 AS26896 D102-ITC - Data 102, LLC
199.233.129.0/24 AS4378 HOSTINGCOM - WCP/32POINTS INTERMEDIATE HOLDING COMPANY, INC.
199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business
200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC.
200.108.176.0/20 AS14551 UUNET-SA - MCI Communications Services, Inc. d/b/a Verizon Business
202.9.55.0/24 AS2764 AAPT AAPT Limited
202.9.57.0/24 AS2764 AAPT AAPT Limited
202.38.63.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.58.113.0/24 AS19161
202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company
202.66.128.0/18 AS9584 GENESIS-AP Diyixian.com Limited
202.66.128.0/19 AS9584 GENESIS-AP Diyixian.com Limited
202.66.160.0/19 AS9584 GENESIS-AP Diyixian.com Limited
202.66.184.0/24 AS9584 GENESIS-AP Diyixian.com Limited
202.66.186.0/24 AS9584 GENESIS-AP Diyixian.com Limited
202.66.188.0/24 AS9584 GENESIS-AP Diyixian.com Limited
202.66.189.0/24 AS9584 GENESIS-AP Diyixian.com Limited
202.66.190.0/24 AS9584 GENESIS-AP Diyixian.com Limited
202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider
202.80.192.0/20 AS2706 PI-HK Pacnet Internet (Hong Kong) Limited
202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited
202.86.252.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications
202.89.8.0/22 AS6648 BAYAN-TELECOMMUNICATIONS Bayan Telecommunications, Inc.
202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
202.133.37.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited
202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited
202.136.254.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
202.136.255.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
202.150.227.0/24 AS17727 NAPINFO-AS-AP PT. NAP Info Lintas Nusa
202.174.70.0/24 AS21175 WIS Wind International Services SA
202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd.
202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia
202.179.130.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.179.131.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.179.133.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited
202.179.144.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.179.149.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.179.150.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.181.32.0/24 AS4645 ASN-HKNET-AP HKNet Co. Ltd
203.12.45.0/24 AS4854 NETSPACE-AS-AP Netspace Online Systems
203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company
203.80.136.0/21 AS4759 EVOSERVE-AS-AP EvoServe is a content and online access Internet provider company
203.112.111.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.113.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.114.0/24 AS4802 ASN-IINET iiNet Limited
203.112.116.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.117.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.118.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.119.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.120.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.121.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.112.127.0/24 AS7474 OPTUSCOM-AS01-AU SingTel Optus Pty Ltd
203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd.
203.142.219.0/24 AS45149
204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
204.9.218.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
204.15.168.0/21 AS46753 TDAMERITRADETRUST - TD Ameritrade Trust
204.19.14.0/23 AS577 BACOM - Bell Canada
204.28.104.0/21 AS25973 MZIMA - Mzima Networks, Inc.
204.89.214.0/24 AS4323 TWTC - tw telecom holdings, inc.
204.197.0.0/16 AS3356 LEVEL3 Level 3 Communications
204.209.114.0/24 AS13768 PEER1 - Peer 1 Network Inc.
205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
205.189.134.0/24 AS11814 CYBERSURF - Cybersurf Inc.
205.210.145.0/24 AS11814 CYBERSURF - Cybersurf Inc.
206.180.240.0/20 AS12083 KNOLOGY-NET - Knology Holdings
206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company
207.174.131.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.132.0/23 AS26116 INDRA - Indra's Net Inc.
207.174.152.0/23 AS26116 INDRA - Indra's Net Inc.
207.174.154.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.155.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.188.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.189.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.190.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.191.0/24 AS26116 INDRA - Indra's Net Inc.
207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc.
207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC
207.231.96.0/19 AS11194 NUNETPA - NuNet Inc.
208.73.4.0/22 AS27630 PREMIER - Premier Innovations, LLC
208.77.224.0/22 AS174 COGENT Cogent/PSI
208.77.229.0/24 AS174 COGENT Cogent/PSI
208.77.230.0/23 AS174 COGENT Cogent/PSI
208.78.164.0/24 AS16565
208.78.165.0/24 AS16565
208.78.167.0/24 AS16565
209.54.123.0/24 AS6062 NETPLEX - NETPLEX
209.105.224.0/19 AS20074
209.165.239.0/24 AS209 ASN-QWEST - Qwest Communications Company, LLC
209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC
209.213.1.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS
209.213.4.0/24 AS7849 CROCKERCOM - CROCKER COMMUNICATIONS
210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone
210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED
210.247.224.0/19 AS7496 WEBCENTRAL-AS WebCentral
216.21.196.0/24 AS12251 INVISION - Invision.com, Inc.
216.21.201.0/24 AS12251 INVISION - Invision.com, Inc.
216.21.202.0/24 AS12251 INVISION - Invision.com, Inc.
216.21.206.0/23 AS12251 INVISION - Invision.com, Inc.
216.58.192.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc.
216.58.197.0/24 AS22702 X5SOLUTIONS - X5 Solutions, Inc.
216.58.200.0/24 AS18530 ISOMEDIA-1 - Isomedia Inc.
216.163.144.0/20 AS35985 ONERINGNET-ATL-1 - One Ring Networks, Inc.
216.172.198.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc.
216.172.199.0/24 AS22773 ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc.
216.250.112.0/20 AS7296 ALCHEMYNET - Alchemy Communications, Inc.
216.250.116.0/24 AS36066 UNI-MARKETING-ALLIANCE - Webhost4life.com
Please see http://www.cidr-report.org for the full report