This report has been generated at Fri Dec 7 21:13:50 2007 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
30-11-07 245357 161051
01-12-07 245652 161180
02-12-07 245249 161306
03-12-07 245521 161232
04-12-07 245305 161536
05-12-07 245493 155252
06-12-07 243093 155449
07-12-07 245371 156129
AS Summary
26932 Number of ASes in routing system
11368 Number of ASes announcing only one prefix
1966 Largest number of prefixes announced by an AS
AS4538 : ERX-CERNET-BKB China Education and Research Network Center
89092608 Largest address span announced by an AS (/32s)
AS721 :
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').
--- 07Dec07 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 245580 156175 89405 36.4% All ASes
AS4538 1966 721 1245 63.3% ERX-CERNET-BKB China Education
and Research Network Center
AS4755 1490 312 1178 79.1% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS18566 1034 33 1001 96.8%
AS4323 1379 379 1000 72.5%
AS9498 1060 69 991 93.5% BBIL-AP BHARTI BT INTERNET
LTD.
AS22773 819 76 743 90.7%
AS8151 1156 433 723 62.5%
AS11492 1172 453 719 61.3%
AS6478 1118 413 705 63.1%
AS4134 1041 381 660 63.4% CHINANET-BACKBONE
No.31,Jin-rong Street
AS17488 917 274 643 70.1% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS19262 800 188 612 76.5%
AS15270 608 41 567 93.3%
AS18101 610 77 533 87.4% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS2386 1323 801 522 39.5%
AS19916 569 76 493 86.6%
AS7018 1512 1020 492 32.5%
AS6197 1032 542 490 47.5%
AS7545 670 198 472 70.4% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS6517 595 142 453 76.1%
AS4812 515 91 424 82.3% CHINANET-SH-AP China Telecom
(Group)
AS7011 992 578 414 41.7%
AS17676 504 90 414 82.1% GIGAINFRA BB TECHNOLOGY Corp.
AS3356 840 429 411 48.9% LEVEL3 Level 3 Communications
AS5668 657 272 385 58.6%
AS4808 518 144 374 72.2% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS9443 450 76 374 83.1% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS4668 519 169 350 67.4% LGNET-AS-KR LG CNS
AS855 550 216 334 60.7%
AS16814 427 94 333 78.0%
Total 26843 8788 18055 67.3% Top 30 total
Possible Bogus Routes
24.48.0.0/13 AS19548
24.48.10.0/23 AS19548
24.48.12.0/22 AS19548
24.48.80.0/21 AS19548
24.54.224.0/19 AS20001
24.105.32.0/20 AS11427
24.212.80.0/20 AS35911
24.246.0.0/17 AS7018
24.246.128.0/18 AS7018
31.31.31.0/24 AS9730 BHARTITELESONIC-AS-IN-AP Bharti Telesonic Ltd
60.253.0.0/18 AS27572
60.253.64.0/19 AS27572
62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite
62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV - Wireless Broadband via Satellite
63.140.213.0/24 AS22555
63.140.238.0/24 AS20471
63.141.42.0/24 AS701
63.143.71.0/24 AS701
63.143.115.0/24 AS701
63.248.0.0/16 AS3356 LEVEL3 Level 3 Communications
63.248.0.0/17 AS3356 LEVEL3 Level 3 Communications
64.6.216.0/21 AS19783
64.7.112.0/21 AS6453 GLOBEINTERNET Teleglobe America Inc.
64.7.120.0/21 AS6453 GLOBEINTERNET Teleglobe America Inc.
64.17.32.0/24 AS13488
64.17.33.0/24 AS13488
64.17.37.0/24 AS13488
64.46.96.0/20 AS13680 AS13680 Hostway Corporation Tampa, FL
64.46.112.0/20 AS30217 DESYNC Desync Corporation
64.50.128.0/18 AS4565
64.144.0.0/15 AS4565
64.188.0.0/16 AS3356 LEVEL3 Level 3 Communications
64.247.0.0/18 AS8001
64.247.6.0/23 AS29791
65.36.8.0/24 AS5696
65.36.9.0/24 AS5696
65.36.33.0/24 AS5696
65.36.52.0/24 AS701
65.44.0.0/14 AS2828
65.44.86.0/24 AS23111
65.44.103.0/24 AS31902
65.44.117.0/24 AS40510
65.44.121.0/24 AS22591
65.44.169.0/24 AS2828
65.44.171.0/24 AS2828
65.44.172.0/24 AS2828
65.44.175.0/24 AS2828
65.44.181.0/24 AS11638
66.6.34.0/24 AS14935
66.11.32.0/20 AS6261
66.11.40.0/21 AS6261
66.54.91.0/24 AS30506
66.55.160.0/19 AS29994
66.64.96.0/20 AS3790
66.103.104.0/21 AS7132
66.180.239.0/24 AS35888
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
66.206.40.0/22 AS174 COGENT Cogent/PSI
66.206.44.0/23 AS174 COGENT Cogent/PSI
66.206.47.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
66.207.32.0/20 AS23011
66.241.96.0/21 AS10271
67.20.0.0/14 AS19548
67.61.254.0/24 AS11492
68.64.0.0/13 AS19548
68.67.124.0/22 AS19548
68.168.0.0/14 AS19548
68.169.21.0/24 AS11351
68.171.12.0/22 AS19548
68.232.0.0/14 AS19548
69.55.108.0/24 AS4977
69.71.192.0/20 AS13818
69.160.0.0/12 AS19548
69.168.0.0/14 AS19548
69.169.0.0/17 AS20001
69.172.0.0/14 AS19548
70.32.0.0/13 AS19548
70.32.64.0/18 AS20001
70.38.0.0/16 AS19548
70.40.0.0/16 AS19548
72.42.232.0/21 AS14743
91.199.66.0/24 AS9044 SOLNET SolNet Internet Solution Provider
95.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
95.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS project
128.209.0.0/16 AS4017
132.0.0.0/10 AS721
137.0.0.0/13 AS721
138.136.0.0/13 AS721
151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd
158.0.0.0/13 AS721
159.3.211.0/24 AS2687 ASATTCA AT&T Global Network Services - AP
163.142.0.0/16 AS2500 WIDE-BB WIDE Project
172.14.254.0/24 AS20312
172.15.254.0/24 AS20312
173.173.173.0/24 AS9730 BHARTITELESONIC-AS-IN-AP Bharti Telesonic Ltd
192.0.2.0/24 AS3300 BT-INFONET-EUROPE BT-Infonet-Europe
192.30.93.0/24 AS17757 HPAUS-AP HP Australia
192.30.94.0/24 AS17757 HPAUS-AP HP Australia
192.40.105.0/24 AS12582 TSF-DATANET-NGD-AS TSF MPLS VPN Services
192.69.107.0/24 AS5515 TS-FINLAND-DATANET-OLD TS Finland DataNet
192.69.108.0/24 AS5515 TS-FINLAND-DATANET-OLD TS Finland DataNet
192.69.177.0/24 AS5515 TS-FINLAND-DATANET-OLD TS Finland DataNet
192.70.164.0/24 AS25689
192.88.99.0/24 AS16186 ASN-SSC-NO SSC Networks
192.96.36.0/24 AS5713 SAIX-NET
192.96.37.0/24 AS10474 NETACTIVE
192.96.135.0/24 AS2018 TENET-1
192.96.136.0/23 AS2018 TENET-1
192.96.143.0/24 AS2018 TENET-1
192.96.145.0/24 AS2018 TENET-1
192.96.177.0/24 AS6083 POSIX-AFRICA
192.101.45.0/24 AS2905 TICSA-ASN
192.101.46.0/24 AS6503
192.101.47.0/24 AS6503
192.101.64.0/21 AS21775
192.101.67.0/24 AS21775
192.101.70.0/24 AS701
192.101.71.0/24 AS701
192.101.72.0/24 AS702 AS702 Verizon Business EMEA - Commercial IP service provider in Europe
192.101.73.0/24 AS4765 WORLDNET-AS World Net & Services Co., Ltd.
192.101.74.0/24 AS1239
192.122.212.0/24 AS209
192.124.252.0/22 AS680 DFN-IP service G-WiN
192.131.233.0/24 AS7891
192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region
192.153.144.0/21 AS721
192.172.0.0/19 AS721
192.188.208.0/20 AS721
194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld
194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH
196.6.108.0/24 AS5713 SAIX-NET
196.10.119.0/24 AS2018 TENET-1
196.10.122.0/23 AS2018 TENET-1
196.10.251.0/24 AS2018 TENET-1
196.10.252.0/23 AS2018 TENET-1
196.10.254.0/24 AS2018 TENET-1
196.13.101.0/24 AS2018 TENET-1
196.13.102.0/23 AS2018 TENET-1
196.13.104.0/24 AS2018 TENET-1
196.13.121.0/24 AS2018 TENET-1
196.13.125.0/24 AS2018 TENET-1
196.13.126.0/24 AS2018 TENET-1
196.13.169.0/24 AS2018 TENET-1
196.13.174.0/23 AS2018 TENET-1
196.13.176.0/21 AS2018 TENET-1
196.13.188.0/22 AS2018 TENET-1
196.13.192.0/22 AS2018 TENET-1
196.13.196.0/24 AS2018 TENET-1
198.23.26.0/24 AS4390
198.49.80.0/23 AS15116
198.54.82.0/24 AS2018 TENET-1
198.54.92.0/24 AS2018 TENET-1
198.54.222.0/24 AS2018 TENET-1
198.97.72.0/21 AS721
198.97.80.0/20 AS721
198.97.96.0/19 AS721
198.97.240.0/20 AS721
198.161.87.0/24 AS6539
198.167.0.0/16 AS7456
198.168.0.0/16 AS701
198.169.0.0/16 AS803
198.180.198.0/24 AS23715 SEOUL-INTGW-GXS-AP Global Exchange Services
199.9.128.0/17 AS668
199.10.0.0/16 AS721
199.114.0.0/21 AS721
199.114.128.0/18 AS721
199.114.130.0/24 AS721
199.114.132.0/24 AS27064
199.114.134.0/24 AS3541
199.114.136.0/24 AS27044
199.114.138.0/24 AS27064
199.114.140.0/24 AS3544
199.114.142.0/24 AS27064
199.114.144.0/24 AS6045
199.114.148.0/24 AS6045
199.114.150.0/24 AS27064
199.114.152.0/24 AS27033
199.114.153.0/24 AS27034
199.114.154.0/24 AS1733
199.114.156.0/24 AS1733
199.114.160.0/24 AS1733
199.121.0.0/16 AS721
199.123.0.0/18 AS721
199.123.16.0/20 AS721
199.123.80.0/21 AS721
199.189.32.0/19 AS7332
199.202.0.0/16 AS701
199.246.116.0/24 AS813
200.61.255.0/24 AS18747
202.45.132.0/22 AS24314
202.58.113.0/24 AS19161
202.73.144.0/20 AS4788 TMNET-AS-AP TM Net, Internet Service Provider
202.86.252.0/22 AS4748 RESOLINK-AS-AP Resources Link Network Limited
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
202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS
202.94.70.0/24 AS9837 POWERTEL-AP Powertel Ltd
202.124.195.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.124.207.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd.
202.128.109.0/24 AS4802 ASN-IINET iiNet 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
202.148.32.0/20 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER
202.164.100.0/24 AS18101 RIL-IDC Reliance Infocom Ltd Internet Data Centre,
202.174.70.0/24 AS21175 M-LINK M-Link Teleport s.a.
202.174.71.0/24 AS23924
202.174.72.0/22 AS23924
202.182.32.0/22 AS10223 UECOMM-AU Uecomm 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
203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd.
203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom
203.112.97.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia
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
203.128.128.0/19 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
203.128.128.0/24 AS23849 CNNIC-NET263-AP Beijing Capital-online science development Co.,Ltd.
203.152.136.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport
203.152.138.0/23 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport
203.152.142.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport
203.152.143.0/24 AS23649 NEWSKIES-AS-AP New Skies Satellites, Hong Kong Teleport
203.160.110.0/23 AS7643 VNN-AS-AP Vietnam Posts and Telecommunications (VNPT)
204.13.140.0/22 AS7270
204.16.120.0/23 AS12077
204.16.122.0/23 AS12077
204.29.196.0/24 AS7018
204.29.197.0/24 AS7018
204.48.58.0/24 AS4323
204.48.60.0/24 AS4323
204.153.68.0/24 AS4017
204.153.71.0/24 AS4017
204.154.125.0/24 AS3952
204.154.126.0/24 AS3952
204.154.127.0/24 AS3952
205.150.0.0/15 AS701
205.167.238.0/24 AS209
205.167.239.0/24 AS209
206.28.176.0/21 AS1273 CW Cable & Wireless
206.55.208.0/20 AS22180
206.72.64.0/20 AS19130
206.162.224.0/19 AS23464
206.180.240.0/20 AS12083
206.220.240.0/24 AS10764
206.220.240.64/26 AS22335
206.220.240.160/30 AS10764
206.220.240.220/32 AS10764
206.220.241.0/24 AS10764
207.98.192.0/24 AS701
207.98.209.0/24 AS701
207.98.223.0/24 AS701
207.189.62.0/23 AS7132
207.204.168.0/24 AS15150
207.204.222.0/24 AS15218
207.204.248.0/24 AS6653
207.231.96.0/19 AS11194
208.64.12.0/22 AS22773
208.118.160.0/19 AS22925
209.54.42.0/24 AS6653
209.54.93.0/24 AS15218
209.54.111.0/24 AS15218
209.54.123.0/24 AS6062
209.54.142.0/24 AS12284
209.54.240.0/21 AS10887
209.105.224.0/19 AS20074
209.140.64.0/20 AS22307
209.140.90.0/24 AS14461
209.140.224.0/21 AS10573
209.140.234.0/24 AS10573
209.140.235.0/24 AS10573
209.140.236.0/24 AS10573
209.140.237.0/24 AS10573
209.140.238.0/24 AS10573
209.140.239.0/24 AS10573
209.141.4.0/24 AS6653
209.141.16.0/21 AS10573
209.141.48.0/22 AS14461
209.141.104.0/24 AS6653
209.207.24.0/24 AS21829
209.207.36.0/24 AS21829
210.5.128.0/20 AS4837 CHINA169-BACKBONE CNCGROUP China169 Backbone
212.121.96.0/19 AS8509 ALTECTELECOMS ALTEC TELECOMS Autonomous System
216.7.139.0/24 AS701
216.37.114.0/23 AS3549 GBLX Global Crossing Ltd.
216.37.120.0/23 AS13377
216.59.0.0/17 AS3356 LEVEL3 Level 3 Communications
216.71.224.0/20 AS14543
216.99.16.0/24 AS6395
216.99.17.0/24 AS6395
216.99.20.0/24 AS6395
216.172.198.0/24 AS15218
216.172.199.0/24 AS15218
216.198.0.0/19 AS6137
216.198.32.0/19 AS7459
216.210.86.0/24 AS577
216.227.128.0/18 AS19548
216.240.240.0/24 AS7018
216.240.241.0/24 AS7018
216.240.242.0/24 AS7018
216.251.203.0/24 AS7132
216.251.205.0/24 AS209
216.251.207.0/24 AS1239
Please see http://www.cidr-report.org for the full report