This report has been generated at Fri Apr 22 21:12:05 2011 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
15-04-11 357492 209863
16-04-11 357568 209705
17-04-11 356846 210150
18-04-11 357824 210186
19-04-11 358136 210366
20-04-11 358373 210576
21-04-11 358318 210619
22-04-11 358888 210705
AS Summary
37468 Number of ASes in routing system
15788 Number of ASes announcing only one prefix
3651 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
110418432 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').
--- 22Apr11 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 358798 210633 148165 41.3% All ASes
AS6389 3651 260 3391 92.9% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS4323 2641 402 2239 84.8% TWTC - tw telecom holdings,
inc.
AS4766 2430 915 1515 62.3% KIXS-AS-KR Korea Telecom
AS6478 1636 214 1422 86.9% ATT-INTERNET3 - AT&T Services,
Inc.
AS22773 1299 93 1206 92.8% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS19262 1495 298 1197 80.1% VZGNI-TRANSIT - Verizon Online
LLC
AS18566 1760 662 1098 62.4% COVAD - Covad Communications
Co.
AS10620 1437 347 1090 75.9% Telmex Colombia S.A.
AS4755 1454 365 1089 74.9% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS1785 1792 764 1028 57.4% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS28573 1281 337 944 73.7% NET Servicos de Comunicao S.A.
AS7552 1037 117 920 88.7% VIETEL-AS-AP Vietel
Corporation
AS7545 1552 758 794 51.2% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS18101 934 151 783 83.8% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS8151 1245 529 716 57.5% Uninet S.A. de C.V.
AS4808 1034 332 702 67.9% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS3356 1145 476 669 58.4% LEVEL3 Level 3 Communications
AS7303 927 264 663 71.5% Telecom Argentina S.A.
AS11492 1256 597 659 52.5% CABLEONE - CABLE ONE, INC.
AS17488 942 300 642 68.2% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS6503 908 280 628 69.2% Axtel, S.A.B. de C.V.
AS17676 658 70 588 89.4% GIGAINFRA Softbank BB Corp.
AS24560 1140 560 580 50.9% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS855 632 56 576 91.1% CANET-ASN-4 - Bell Aliant
Regional Communications, Inc.
AS14420 663 104 559 84.3% CORPORACION NACIONAL DE
TELECOMUNICACIONES - CNT EP
AS3549 944 394 550 58.3% GBLX Global Crossing Ltd.
AS22047 565 30 535 94.7% VTR BANDA ANCHA S.A.
AS4780 718 188 530 73.8% SEEDNET Digital United Inc.
AS22561 863 340 523 60.6% DIGITAL-TELEPORT - Digital
Teleport Inc.
AS4804 576 82 494 85.8% MPX-AS Microplex PTY LTD
Total 38615 10285 28330 73.4% Top 30 total
Possible Bogus Routes
10.86.64.32/30 AS65530 -Private Use AS-
10.86.64.36/30 AS65530 -Private Use AS-
10.86.65.32/30 AS65530 -Private Use AS-
10.86.65.36/30 AS65530 -Private Use AS-
10.255.255.0/30 AS65530 -Private Use AS-
10.255.255.4/30 AS65530 -Private Use AS-
10.255.255.8/30 AS65530 -Private Use AS-
24.48.0.0/14 AS5769 VIDEOTRON - Videotron Telecom Ltee
24.225.128.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc.
24.225.192.0/18 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc.
24.225.192.0/23 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc.
24.225.224.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc.
24.225.237.0/24 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc.
24.225.248.0/21 AS36377 PATRIOT-MEDIA-NJ - Comcast Telecommunications, Inc.
41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
45.127.0.0/16 AS13767 DBANK - DataBank Holdings, Ltd.
62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV
62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV
64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation
64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation
64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation
66.171.32.0/20 AS16626 GNAXNET-AS - Global Net Access, LLC
66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION
66.206.47.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
66.207.32.0/20 AS23011
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
71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A.
72.22.32.0/19 AS33150
72.22.61.0/24 AS33150
72.22.62.0/24 AS33150
76.77.32.0/19 AS2828 XO-AS15 - XO Communications
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
115.42.28.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.40.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.42.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.44.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.47.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.48.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.49.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.50.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.51.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.52.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.53.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.54.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.55.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.56.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.57.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.58.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.59.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.61.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.62.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
115.42.63.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP
121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc.
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
172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group)
181.82.15.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul
181.82.16.0/24 AS23982 SENDB-AS-KR Dongbu District Office of Education in Seoul
181.82.17.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education
181.82.18.0/24 AS38418 SENSD-AS-KR seoul seondong district office of education
190.102.32.0/20 AS30058 FDCSERVERS - FDCservers.net
190.104.32.0/21 AS27882 Telef�nica Celular de Bolivia S.A.
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
192.101.46.0/24 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
192.124.252.0/22 AS680 DFN-IP service G-WiN
192.131.233.0/24 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
192.145.251.0/24 AS10026 PACNET Pacnet Global Ltd
192.154.32.0/19 AS81 NCREN - MCNC
192.154.64.0/19 AS81 NCREN - MCNC
192.188.208.0/20 AS721 DNIC-ASBLK-00721-00726 - 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
196.202.224.0/21 AS8818 TELE Greenland Autonomous System
198.1.2.0/24 AS4761 INDOSAT-INP-AP INDOSAT Internet Network Provider
198.15.4.0/24 AS4323 TWTC - tw telecom holdings, inc.
198.15.5.0/24 AS4323 TWTC - tw telecom holdings, inc.
198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc.
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 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center
198.97.96.0/19 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center
198.97.240.0/20 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center
198.99.241.0/24 AS11797 AC-NIELSEN-AS AC NIELSEN
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
198.175.231.0/24 AS19262 VZGNI-TRANSIT - Verizon Online LLC
198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services
198.182.235.0/24 AS3356 LEVEL3 Level 3 Communications
199.16.32.0/19 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
199.33.84.0/22 AS9911 CONNECTPLUS-AP Singapore Telecom
199.121.0.0/16 AS721 DNIC-ASBLK-00721-00726 - DoD Network Information Center
199.123.16.0/20 AS721 DNIC-ASBLK-00721-00726 - 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
199.246.116.0/24 AS813 UUNET-CANADA - MCI Communications Services, Inc. d/b/a Verizon Business
200.1.112.0/24 AS29754 GO2TEL GO2TEL.COM INC.
200.24.73.0/24 AS26061 Equant Colombia
200.24.76.0/24 AS7195 Telecorp Colombia S.A.
200.24.78.0/26 AS3549 GBLX Global Crossing Ltd.
200.24.78.64/26 AS3549 GBLX Global Crossing Ltd.
202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000
202.9.55.0/24 AS2764 AAPT AAPT Limited
202.9.57.0/24 AS2764 AAPT AAPT 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
202.66.160.0/19 AS9584 GENESIS-AP Diyixian.com Limited
202.66.160.0/20 AS9584 GENESIS-AP Diyixian.com Limited
202.66.176.0/20 AS9584 GENESIS-AP Diyixian.com Limited
202.74.232.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.74.233.0/24 AS17557 PKTELECOM-AS-PK Pakistan Telecommunication Company Limited
202.83.120.0/21 AS37972
202.83.124.0/24 AS37972
202.83.125.0/24 AS37972
202.83.126.0/24 AS37972
202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network
202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited
202.133.73.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited
202.146.186.0/24 AS23655 SNAP-NZ-AS Snap Internet Limited
202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd.
202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia
202.179.131.0/24 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
203.18.156.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications
203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
203.142.219.0/24 AS45149
203.175.107.0/24 AS45595 PKTELECOM-AS-PK Pakistan Telecom Company Limited
203.190.32.0/22 AS24564
204.9.216.0/23 AS6389 BELLSOUTH-NET-BLK - BellSouth.net Inc.
204.10.232.0/21 AS33150
204.19.14.0/23 AS577 BACOM - Bell Canada
205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business
205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX Orange Business Services (formerly Equant) AS for BENELUX
205.189.134.0/24 AS11814 DISTRIBUTEL-AS11814 - DISTRIBUTEL COMMUNICATIONS LTD.
205.207.148.0/23 AS812 ROGERS-CABLE - Rogers Cable Communications Inc.
206.72.192.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc.
206.72.194.0/23 AS16526 BIRCH-TELECOM - Birch Telecom, Inc.
206.123.129.0/24 AS10790 INREACH-AS - InReach Internet
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.
208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW
208.64.240.0/24 AS13871 TELEBYTE-NW - Telebyte NW
208.64.241.0/24 AS13871 TELEBYTE-NW - Telebyte NW
208.64.242.0/24 AS13871 TELEBYTE-NW - Telebyte NW
208.64.243.0/24 AS13871 TELEBYTE-NW - Telebyte NW
208.64.244.0/24 AS13871 TELEBYTE-NW - Telebyte NW
208.64.247.0/24 AS13871 TELEBYTE-NW - Telebyte NW
208.78.165.0/24 AS16565
208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC
208.92.196.0/22 AS10929 NETELLIGENT - Netelligent Hosting Services Inc.
208.92.199.0/24 AS26198 3MENATWORK - 3Men@Work Integrated Networks, Inc.
209.54.123.0/24 AS6062 NETPLEX - NETPLEX
209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications
209.165.239.0/24 AS209 ASN-QWEST - Qwest Communications Company, LLC
209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network
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
216.10.235.0/24 AS13780 NTNCOMMUNICATIONS - NTN
216.10.236.0/24 AS13780 NTNCOMMUNICATIONS - NTN
216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
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.
216.105.192.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc.
216.105.196.0/23 AS7385 INTEGRATELECOM - Integra Telecom, Inc.
216.105.200.0/21 AS7385 INTEGRATELECOM - Integra Telecom, 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.
216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
Please see http://www.cidr-report.org for the full report