This report has been generated at Fri Dec 23 21:12:13 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
16-12-11 385889 227873
17-12-11 389196 227642
18-12-11 389128 227738
19-12-11 389199 226868
20-12-11 388637 226734
21-12-11 388688 227520
22-12-11 388706 227460
23-12-11 388955 227357
AS Summary
39773 Number of ASes in routing system
16736 Number of ASes announcing only one prefix
3470 Largest number of prefixes announced by an AS
AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc.
109243392 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').
--- 23Dec11 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 389359 227438 161921 41.6% All ASes
AS6389 3470 222 3248 93.6% BELLSOUTH-NET-BLK -
BellSouth.net Inc.
AS18566 2093 412 1681 80.3% COVAD - Covad Communications
Co.
AS4766 2492 990 1502 60.3% KIXS-AS-KR Korea Telecom
AS7029 2958 1525 1433 48.4% WINDSTREAM - Windstream
Communications Inc
AS22773 1515 116 1399 92.3% ASN-CXA-ALL-CCI-22773-RDC -
Cox Communications Inc.
AS4755 1512 201 1311 86.7% TATACOMM-AS TATA
Communications formerly VSNL
is Leading ISP
AS4323 1622 387 1235 76.1% TWTC - tw telecom holdings,
inc.
AS28573 1574 365 1209 76.8% NET Servicos de Comunicao S.A.
AS10620 1720 642 1078 62.7% Telmex Colombia S.A.
AS1785 1863 787 1076 57.8% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS7552 1420 402 1018 71.7% VIETEL-AS-AP Vietel
Corporation
AS19262 1389 402 987 71.1% VZGNI-TRANSIT - Verizon Online
LLC
AS7303 1249 364 885 70.9% Telecom Argentina S.A.
AS18101 975 158 817 83.8% RELIANCE-COMMUNICATIONS-IN
Reliance Communications
Ltd.DAKC MUMBAI
AS8151 1457 659 798 54.8% Uninet S.A. de C.V.
AS8402 1553 762 791 50.9% CORBINA-AS OJSC "Vimpelcom"
AS30036 1466 694 772 52.7% MEDIACOM-ENTERPRISE-BUSINESS -
Mediacom Communications Corp
AS4808 1076 338 738 68.6% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS15557 1092 365 727 66.6% LDCOMNET Societe Francaise du
Radiotelephone S.A
AS24560 1012 287 725 71.6% AIRTELBROADBAND-AS-AP Bharti
Airtel Ltd., Telemedia
Services
AS7545 1628 946 682 41.9% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS3356 1105 459 646 58.5% LEVEL3 Level 3 Communications
AS2118 672 61 611 90.9% RELCOM-AS OOO "NPO Relcom"
AS17974 1716 1110 606 35.3% TELKOMNET-AS2-AP PT
Telekomunikasi Indonesia
AS17676 676 74 602 89.1% GIGAINFRA Softbank BB Corp.
AS4804 663 95 568 85.7% MPX-AS Microplex PTY LTD
AS20115 1612 1060 552 34.2% CHARTER-NET-HKY-NC - Charter
Communications
AS3549 971 420 551 56.7% GBLX Global Crossing Ltd.
AS9498 857 308 549 64.1% BBIL-AP BHARTI Airtel Ltd.
AS22047 582 33 549 94.3% VTR BANDA ANCHA S.A.
Total 43990 14644 29346 66.7% 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-
37.25.64.0/21 AS33828 IPTOX-AS iptoX GmbH
41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited
41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service
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
66.129.0.0/19 AS3901 ARRAKIS - Higher Technology Services
66.175.222.0/23 AS30058 FDCSERVERS - FDCservers.net
66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION
66.207.32.0/20 AS23011
66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC
69.46.224.0/20 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers
69.46.233.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers
69.46.236.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers
71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A.
80.88.10.0/24 AS33774 DJAWEB
91.234.44.0/23 AS57015 SENSITIVE-TELECOM Sensitive Line SRL
91.234.46.0/24 AS57015 SENSITIVE-TELECOM Sensitive Line SRL
98.159.96.0/20 AS46975
110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas
116.206.72.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
116.206.85.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
116.206.103.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
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.
172.45.1.0/24 AS29571 CITelecom-AS
172.45.2.0/24 AS29571 CITelecom-AS
172.45.3.0/24 AS29571 CITelecom-AS
172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group)
190.104.32.0/21 AS27882 Telef�nica Celular de Bolivia S.A.
193.0.22.0/23 AS3333 RIPE-NCC-AS RIPE Network Coordination Centre
200.6.93.0/24 AS6400 Compa��a Dominicana de Tel�fonos, C. por A. - CODETEL
200.6.94.0/24 AS6400 Compa��a Dominicana de Tel�fonos, C. por A. - CODETEL
200.6.95.0/24 AS6400 Compa��a Dominicana de Tel�fonos, C. por A. - CODETEL
200.23.84.0/24 AS8151 Uninet S.A. de C.V.
200.24.73.0/24 AS26061 Equant Colombia
200.33.40.0/24 AS11172 Alestra, S. de R.L. de C.V.
200.34.0.0/20 AS6342 Instituto Tecnol�gico y de Estudios Superiores de Monterrey
200.53.0.0/19 AS13878 Diveo do Brasil Telecomunicacoes Ltda
202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000
202.8.106.0/24 AS9530 SHINSEGAE-AS SHINSEGAE I&C Co., Ltd.
202.9.55.0/24 AS2764 AAPT AAPT Limited
202.58.113.0/24 AS19161
202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company
202.83.120.0/21 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
202.160.152.0/22 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD
202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd.
202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia
202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited
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
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 France Telecom S.A.
206.123.129.0/24 AS10790 INREACH-AS - InReach Internet
206.180.240.0/20 AS12083 KNOLOGY-NET - KNOLOGY, Inc.
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
207.174.200.0/24 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
208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC
208.91.56.0/21 AS22241 IC2NET - IC2NET
208.91.56.0/24 AS22241 IC2NET - IC2NET
208.91.57.0/24 AS22241 IC2NET - IC2NET
208.91.58.0/24 AS22241 IC2NET - IC2NET
208.91.59.0/24 AS22241 IC2NET - IC2NET
208.91.60.0/24 AS22241 IC2NET - IC2NET
208.91.61.0/24 AS22241 IC2NET - IC2NET
208.91.62.0/24 AS22241 IC2NET - IC2NET
208.91.63.0/24 AS22241 IC2NET - IC2NET
209.133.224.0/19 AS4323 TWTC - tw telecom holdings, inc.
209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications
209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network
209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC
209.222.240.0/22 AS19747
210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED
216.12.160.0/20 AS26627 AS-PILOSOFT - Pilosoft, Inc.
216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport
216.170.96.0/24 AS4565 MEGAPATH2-US - MegaPath Networks Inc.
216.170.97.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.98.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.99.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.100.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.101.0/24 AS4565 MEGAPATH2-US - MegaPath Networks Inc.
216.170.102.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.103.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.104.0/24 AS4565 MEGAPATH2-US - MegaPath Networks Inc.
216.170.105.0/24 AS4565 MEGAPATH2-US - MegaPath Networks Inc.
216.170.106.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.107.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.108.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.109.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.110.0/24 AS13333 CCI-PA-AS-1 - Consolidated Communications, Inc.
216.170.111.0/24 AS13333 CCI-PA-AS-1 - Consolidated 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