This report has been generated at Fri Jan 30 21:48:00 2004 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
23-01-04 129825 91041
24-01-04 129829 90960
25-01-04 129792 90949
26-01-04 129829 91029
27-01-04 129940 90955
28-01-04 129894 90911
29-01-04 129760 90995
30-01-04 129929 90988
AS Summary
16474 Number of ASes in routing system
6633 Number of ASes announcing only one prefix
1377 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 AT&T WorldNet Services
73498880 Largest address span announced by an AS (/32s)
AS568 : SUMNET-AS DISO-UNRRA
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').
--- 30Jan04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 130057 90986 39071 30.0% All ASes
AS4323 681 201 480 70.5% TW-COMM Time Warner
Communications, Inc.
AS7018 1377 960 417 30.3% ATT-INTERNET4 AT&T WorldNet
Services
AS6197 676 263 413 61.1% BATI-ATL BellSouth Network
Solutions, Inc
AS701 1348 951 397 29.5% ALTERNET-AS UUNET
Technologies, Inc.
AS7843 513 116 397 77.4% ADELPHIA-AS Adelphia Corp.
AS27364 382 33 349 91.4% ACS-INTERNET Armstrong Cable
Services
AS6198 590 244 346 58.6% BATI-MIA BellSouth Network
Solutions, Inc
AS4134 660 335 325 49.2% CHINANET-BACKBONE
No.31,Jin-rong Street
AS22909 337 18 319 94.7% DNEO-OSP1 Comcast Cable
Communications, Inc.
AS22773 337 35 302 89.6% CCINET-2 Cox Communications
Inc. Atlanta
AS9583 311 19 292 93.9% SATYAMNET-AS Satyam Infoway
Ltd.,
AS4355 385 99 286 74.3% ERMS-EARTHLNK EARTHLINK, INC
AS1239 952 668 284 29.8% SPRINTLINK Sprint
AS1221 902 644 258 28.6% ASN-TELSTRA Telstra Pty Ltd
AS17676 293 42 251 85.7% GIGAINFRA Softbank BB Corp.
AS6347 328 82 246 75.0% DIAMOND SAVVIS Communications
Corporation
AS6140 358 125 233 65.1% IMPSAT-USA ImpSat
AS25844 243 16 227 93.4% SKADDEN1 Skadden, Arps, Slate,
Meagher & Flom LLP
AS6478 267 45 222 83.1% ATT-INTERNET3 AT&T WorldNet
Services
AS209 719 509 210 29.2% ASN-QWEST Qwest
AS14654 213 3 210 98.6% WAYPORT Wayport
AS11305 243 42 201 82.7% INTERLAND-NET1 Interland
Incorporated
AS2386 418 229 189 45.2% INS-AS AT&T Data
Communications Services
AS20115 605 419 186 30.7% CHARTER-NET-HKY-NC Charter
Communications
AS4519 201 18 183 91.0% MAAS Maas Communications
AS6327 205 28 177 86.3% SHAW Shaw Communications Inc.
AS9929 199 30 169 84.9% CNCNET-CN China Netcom Corp.
AS15270 208 39 169 81.2% AS-PAETEC-NET PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS2048 248 84 164 66.1% LANET-1 State of Louisiana
AS4766 409 248 161 39.4% KIX Korea Internet Exchange
for "96 World Internet
Exposition
Total 14608 6545 8063 55.2% Top 30 total
Possible Bogus Routes
24.138.80.0/20 AS11260 ANDARA-HSI Andara High Speed Internet c/o Halifax Cable Ltd.
64.62.126.0/23 AS25700 SWIFTDESK SWIFTDESK VENTURE
66.114.0.0/19 AS16526 BIRCH-TELECOM Birch Telecom, Inc.
66.114.28.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc.
66.114.29.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc.
66.114.30.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc.
66.114.31.0/24 AS15083 INFOLINK-MIA-US Infolink Communication Services, Inc.
69.8.128.0/17 AS7260 NORLIGHT Norlight Telecommunications
132.0.0.0/10 AS568 SUMNET-AS DISO-UNRRA
137.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA
138.136.0.0/13 AS568 SUMNET-AS DISO-UNRRA
158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA
192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network
192.44.0.0/19 AS702 AS702 MCI EMEA
192.64.84.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.83.16.0/20 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.83.32.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.83.64.0/19 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.83.96.0/22 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.83.100.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System
192.119.135.0/24 AS270 PSCNI-AS National Aeronautics and Space Administration
192.124.252.0/22 AS680 AS680 DFN-IP service G-WiN
192.135.50.0/24 AS7018 ATT-INTERNET4 AT&T WorldNet Services
192.136.71.0/24 AS719 LANLINK Elisa Oyj
192.136.79.0/24 AS719 LANLINK Elisa Oyj
192.153.144.0/21 AS568 SUMNET-AS DISO-UNRRA
192.172.0.0/19 AS568 SUMNET-AS DISO-UNRRA
192.188.208.0/20 AS568 SUMNET-AS DISO-UNRRA
192.243.32.0/23 AS2044 PALIN-AS Palin Aquisitions Inc.
198.23.26.0/24 AS4390 BELLATLANTIC-COM Bell Atlantic, Inc.
198.97.72.0/21 AS568 SUMNET-AS DISO-UNRRA
198.97.80.0/20 AS568 SUMNET-AS DISO-UNRRA
198.97.88.0/24 AS89 NUSC-CSTLNET-AS Naval Underwater Systems Center
198.97.192.0/20 AS568 SUMNET-AS DISO-UNRRA
198.97.240.0/20 AS568 SUMNET-AS DISO-UNRRA
198.101.4.0/22 AS568 SUMNET-AS DISO-UNRRA
198.136.32.0/20 AS19329 MCNET Martin County Board of County Commissioners
198.144.32.0/19 AS3998 CITY-NET CityNet, Inc.
198.161.87.0/24 AS6539 GROUPTLCOM GT Group Telecom Services Corp.
198.161.165.0/24 AS852 ASN852 Telus Advanced Communications
198.163.155.0/24 AS684 MBNET-AS Manitoba Regional Network
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
199.10.0.0/16 AS568 SUMNET-AS DISO-UNRRA
199.60.0.0/20 AS271 BCNET-AS University of British Columbia
199.84.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc.
199.114.0.0/18 AS568 SUMNET-AS DISO-UNRRA
199.114.0.0/21 AS568 SUMNET-AS DISO-UNRRA
199.114.128.0/18 AS568 SUMNET-AS DISO-UNRRA
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
199.114.136.0/24 AS1913 DLA4 Defense Logistics Agency
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 AS1913 DLA4 Defense Logistics Agency
199.114.154.0/24 AS1733 CENTAF-SWA AF DDN PMO
199.114.156.0/24 AS1913 DLA4 Defense Logistics Agency
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 AS568 SUMNET-AS DISO-UNRRA
199.123.0.0/18 AS568 SUMNET-AS DISO-UNRRA
199.123.16.0/20 AS568 SUMNET-AS DISO-UNRRA
199.123.80.0/21 AS568 SUMNET-AS DISO-UNRRA
199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet
199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc.
202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES
202.70.0.0/20 AS4658 NETFRONT-AS NETFRONT I.T. LIMITED (HONG KONG)
202.70.16.0/22 AS17888 SINGTEL-HK SingTel Hong Kong Limited
202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
202.72.112.0/22 AS22351 INTELSAT-1 INTELSAT
202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
202.86.128.0/24 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
202.86.142.0/24 AS30362 HPT-ASN Hawaii-Pacific Teleport
202.86.171.0/24 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
202.86.172.0/23 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
202.86.190.0/24 AS4750 loxley-th Loxley Information Co., Ltd.
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider
202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus
202.183.32.0/19 AS23988 PLDTGLOBAL-AS-AP PLDT GLOBAL Corp. Internet-based Services AP
203.32.4.0/23 AS7617 AS7617
203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
203.86.2.0/23 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd
203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
203.132.108.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
203.132.111.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
203.132.118.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd.
203.132.122.0/24 AS4802 WANTREE-AS-AP Wantree Development
203.132.123.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd.
203.132.124.0/24 AS18065 CENTRALDATA-WA Central Data Pty Ltd.
203.132.125.0/24 AS4817 TECHEX1-AS-AP Techex Primary Netblock
203.135.99.0/24 AS2687 IBM-MMD-AS IBM
204.69.144.0/22 AS5668 AS-5668 CenturyTel Internet Holdings, Inc.
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.
206.41.32.0/19 AS14824 NEWSOUTH NewSouth Communications Corp.
206.81.187.0/24 AS19194 JOVITA Sentris Network LLC
206.108.34.0/24 AS852 ASN852 Telus Advanced Communications
206.108.35.0/24 AS852 ASN852 Telus Advanced Communications
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
206.251.69.0/24 AS27429 TIL Telesat International Ltd.
207.162.192.0/19 AS4589 EASYNET Easynet Group Plc
207.231.96.0/19 AS11194 NUNETPA NuNet Inc
208.81.187.0/24 AS19194 JOVITA Sentris Network LLC
209.87.192.0/20 AS15290 ALLST-15290 Allstream Corp. Corporation Allstream
209.169.219.0/24 AS189 GENUITY-AS189 Genuity
209.169.223.0/24 AS189 GENUITY-AS189 Genuity
209.172.0.0/18 AS7770 TRITON Triton Technologies, Inc.
209.213.32.0/19 AS10629 INTERPAC Inter-Pacific Network Services
209.213.50.0/24 AS10629 INTERPAC Inter-Pacific Network Services
209.213.51.0/24 AS10629 INTERPAC Inter-Pacific Network Services
209.213.55.0/24 AS10629 INTERPAC Inter-Pacific Network Services
209.213.56.0/24 AS10629 INTERPAC Inter-Pacific Network Services
209.222.137.0/24 AS27429 TIL Telesat International Ltd.
209.240.96.0/19 AS10815 KCNET KCnet, Inc.
209.251.0.0/19 AS11036 SISCOM SISCOM, Inc
209.251.64.0/19 AS10266 NETWAY-AS MDC, Inc.
210.213.0.0/19 AS6453 GIEUROPE Teleglobe America Inc.
216.18.224.0/21 AS11458 IMBRIS IMBRIS, INC.
216.18.224.0/22 AS11458 IMBRIS IMBRIS, INC.
216.18.228.0/22 AS11458 IMBRIS IMBRIS, INC.
216.36.46.0/24 AS7176 GENUITY-AS7176 Genuity
216.36.47.0/24 AS7176 GENUITY-AS7176 Genuity
216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services
Please see http://www.cidr-report.org for the full report