The Cidr Report
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Date: Fri, 27 May 2005 22:00:00 +1000 (EST)
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Cc: , , , , ,
This report has been generated at Fri May 27 21:44:53 2005 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
20-05-05 158685 108256
21-05-05 158972 108395
22-05-05 159109 108397
23-05-05 159008 108394
24-05-05 159076 108516
25-05-05 159232 108495
26-05-05 159288 108591
27-05-05 159418 108656
AS Summary
19625 Number of ASes in routing system
8044 Number of ASes announcing only one prefix
1475 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 - AT&T WorldNet Services
90462976 Largest address span announced by an AS (/32s)
AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center
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').
--- 27May05 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 159514 108673 50841 31.9% All ASes
AS4323 1116 220 896 80.3% TWTC - Time Warner Telecom
AS18566 812 8 804 99.0% COVAD - Covad Communications
AS4134 899 223 676 75.2% CHINANET-BACKBONE
No.31,Jin-rong Street
AS721 1111 562 549 49.4% DLA-ASNBLOCK-AS - DoD Network
Information Center
AS27364 565 22 543 96.1% ACS-INTERNET - Armstrong Cable
Services
AS7018 1475 954 521 35.3% ATT-INTERNET4 - AT&T WorldNet
Services
AS22773 488 25 463 94.9% CCINET-2 - Cox Communications
Inc.
AS6467 423 34 389 92.0% ESPIRECOMM - e.spire
Communications, Inc.
AS6197 907 519 388 42.8% BATI-ATL - BellSouth Network
Solutions, Inc
AS7725 434 48 386 88.9% CCH-AS7 - Comcast Cable
Communications Holdings, Inc
AS3602 523 142 381 72.8% SPRINT-CA-AS - Sprint Canada
Inc.
AS17676 432 79 353 81.7% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS9929 352 48 304 86.4% CNCNET-CN China Netcom Corp.
AS4766 577 281 296 51.3% KIXS-AS-KR Korea Telecom
AS6140 408 127 281 68.9% IMPSAT-USA - ImpSat
AS14654 268 6 262 97.8% WAYPORT - Wayport
AS9443 374 123 251 67.1% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS6478 401 153 248 61.8% ATT-INTERNET3 - AT&T WorldNet
Services
AS7545 499 255 244 48.9% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS15270 287 44 243 84.7% AS-PAETEC-NET - PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS1239 887 647 240 27.1% SPRINTLINK - Sprint
AS9498 305 75 230 75.4% BBIL-AP BHARTI BT INTERNET
LTD.
AS4755 512 283 229 44.7% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS9583 742 513 229 30.9% SIFY-AS-IN Sify Limited
AS6198 463 238 225 48.6% BATI-MIA - BellSouth Network
Solutions, Inc
AS5668 488 265 223 45.7% AS-5668 - CenturyTel Internet
Holdings, Inc.
AS2386 850 635 215 25.3% INS-AS - AT&T Data
Communications Services
AS11456 308 100 208 67.5% NUVOX - NuVox Communications,
Inc.
AS6167 266 68 198 74.4% CELLCO-PART - Cellco
Partnership
AS812 218 21 197 90.4% ROGERS-CABLE - Rogers Cable
Inc.
Total 17390 6718 10672 61.4% Top 30 total
Possible Bogus Routes
24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
64.9.224.0/19 AS209 ASN-QWEST - Qwest
64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited
64.127.0.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc.
66.164.232.0/24 AS6197 BATI-ATL - BellSouth Network Solutions, Inc
66.205.192.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.193.0/24 AS174 COGENT Cogent/PSI
66.205.194.0/24 AS174 COGENT Cogent/PSI
66.205.195.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.196.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.197.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.198.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.199.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.200.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.201.0/24 AS22278 LINUXLABS - linux labs
66.205.202.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.204.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.205.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.206.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.207.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.208.0/24 AS22278 LINUXLABS - linux labs
66.205.209.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.210.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.211.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.212.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.213.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.215.0/24 AS22278 LINUXLABS - linux labs
66.205.216.0/24 AS22278 LINUXLABS - linux labs
66.205.217.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.219.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.220.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.221.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.222.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
66.205.223.0/24 AS6461 MFNX MFN - Metromedia Fiber Network
172.32.0.0/24 AS7011 CITLINK - Citizens Utilities
172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network
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 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet)
192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe
192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft
192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada
192.81.182.0/24 AS719 ELISA-AS Elisa Oyj
192.81.183.0/24 AS719 ELISA-AS Elisa Oyj
192.81.184.0/24 AS719 ELISA-AS Elisa Oyj
192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration
192.124.252.0/22 AS680 DFN-IP service G-WiN
192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System
192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
192.136.53.0/24 AS8346 SONATEL-AS Autonomous System
192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L
196.3.162.0/24 AS6083 AFRINIC African Network Information Center
198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc.
198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center
198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy
198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners
198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc.
198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc.
198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp.
198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc.
198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc.
198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
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
199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network
199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.60.0.0/20 AS271 BCNET-AS - University of British Columbia
199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc.
199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc.
199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA
199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center
199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA
199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center
199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center
199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO
199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO
199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC.
199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center
199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet
199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc.
202.86.252.0/22 AS4748 RESOLINK-AS Resources Linke Network Limited
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange
203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited
203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet
203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd
203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications
204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation
204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc.
204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc.
205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc.
206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc.
206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER
206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ)
206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream
207.231.96.0/19 AS11194 NUNETPA - NuNet Inc
208.53.224.0/19 AS13576 SDNET - SOUTH DAKOTA NETWORK
208.138.48.0/20 AS6971 ATG-1 - Advanced Telcom Group, Inc
209.40.208.0/21 AS16592 Cybernet El Salvador
209.40.216.0/21 AS16592 Cybernet El Salvador
209.134.0.0/18 AS8082 WORLDSITE - Worldsite Networks
209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga
209.205.81.0/24 AS15066 SkyNet de Colombia S.A.
209.205.82.0/24 AS15066 SkyNet de Colombia S.A.
209.205.84.0/24 AS15066 SkyNet de Colombia S.A.
209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services
209.222.137.0/24 AS27429 TIL - Telesat International Ltd.
209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc
216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network
216.82.160.0/20 AS13823 CALYX-USA - Calyx Internet Access Corp.
216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services
216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services
216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications
216.178.37.0/24 AS3356 LEVEL3 Level 3 Communications
216.178.39.0/24 AS3356 LEVEL3 Level 3 Communications
216.178.42.0/24 AS3356 LEVEL3 Level 3 Communications
216.178.43.0/24 AS3356 LEVEL3 Level 3 Communications
216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet Services
Please see http://www.cidr-report.org for the full report
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