This report has been generated at Fri Oct 31 21:48:28 2003 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
24-10-03 126836 89904
25-10-03 126575 90050
25-10-03 126891 90138
27-10-03 126973 90190
28-10-03 127076 90375
29-10-03 127450 90327
30-10-03 127375 90445
31-10-03 128001 90054
AS Summary
16044 Number of ASes in routing system
6383 Number of ASes announcing only one prefix
2061 Largest number of prefixes announced by an AS
AS209 : ASN-QWEST Qwest
73586432 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').
--- 31Oct03 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 128193 90037 38156 29.8% All ASes
AS209 2061 546 1515 73.5% ASN-QWEST Qwest
AS4323 680 197 483 71.0% TW-COMM Time Warner
Communications, Inc.
AS701 1424 990 434 30.5% ALTERNET-AS UUNET
Technologies, Inc.
AS7018 1356 944 412 30.4% ATT-INTERNET4 AT&T WorldNet
Services
AS7843 532 132 400 75.2% ADELPHIA-AS Adelphia Corp.
AS6197 645 272 373 57.8% BATI-ATL BellSouth Network
Solutions, Inc
AS6198 569 229 340 59.8% BATI-MIA BellSouth Network
Solutions, Inc
AS22909 305 21 284 93.1% DNEO-OSP1 Comcast Cable
Communications, Inc.
AS4355 389 109 280 72.0% ERMS-EARTHLNK EARTHLINK, INC
AS22773 297 19 278 93.6% CCINET-2 Cox Communications
Inc. Atlanta
AS1221 958 681 277 28.9% ASN-TELSTRA Telstra Pty Ltd
AS6347 340 86 254 74.7% DIAMOND SAVVIS Communications
Corporation
AS1239 921 669 252 27.4% SPRINTLINK Sprint
AS4134 359 120 239 66.6% CHINANET-BACKBONE
No.31,Jin-rong Street
AS17676 276 39 237 85.9% GIGAINFRA Softbank BB Corp.
AS25844 243 11 232 95.5% SKADDEN1 Skadden, Arps, Slate,
Meagher & Flom LLP
AS27364 316 87 229 72.5% ACS-INTERNET Armstrong Cable
Services
AS11305 230 38 192 83.5% INTERLAND-NET1 Interland
Incorporated
AS9583 271 82 189 69.7% SATYAMNET-AS Satyam Infoway
Ltd.,
AS4519 189 10 179 94.7% MAAS Maas Communications
AS6140 337 160 177 52.5% IMPSAT-USA ImpSat
AS2386 385 209 176 45.7% INS-AS AT&T Data
Communications Services
AS6327 204 28 176 86.3% SHAW Shaw Communications Inc.
AS14654 178 2 176 98.9% WAYPORT Wayport
AS9498 201 28 173 86.1% BBIL-AP BHARTI BT INTERNET
LTD.
AS2048 252 86 166 65.9% LANET-1 State of Louisiana
AS15270 202 44 158 78.2% AS-PAETEC-NET PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS705 394 238 156 39.6% ALTERNET-AS UUNET
Technologies, Inc.
AS5668 310 156 154 49.7% CENTURY Century Telephone
AS11172 192 42 150 78.1% MX-SASC-LACNIC Servicios
Alestra S.A de C.V
Total 15016 6275 8741 58.2% Top 30 total
Possible Bogus Routes
24.119.0.0/16 AS11492 CABLEONE CABLE ONE
61.12.32.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd
61.12.34.0/24 AS7545 TPG-INTERNET-AP TPG Internet Pty Ltd
64.30.64.0/19 AS14900 USLEC-CORP-1 USLEC Corp.
64.85.160.0/22 AS3356 LEVEL3 Level 3 Communications, LLC
64.85.184.0/21 AS3356 LEVEL3 Level 3 Communications, LLC
66.41.192.0/18 AS13367 CCCH-AS3 Comcast Cable Communications Holdings, Inc
66.133.192.0/18 AS20001 ROADRUNNER-WEST HoldCo LLC - Road Runner
66.133.234.0/23 AS1668 AOL-ATDN AOL Transit Data Network
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
140.143.2.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
140.240.0.0/13 AS1 GNTY-1 Genuity
142.105.220.0/22 AS209 ASN-QWEST Qwest
142.105.224.0/22 AS209 ASN-QWEST Qwest
142.105.228.0/22 AS209 ASN-QWEST Qwest
142.105.232.0/22 AS209 ASN-QWEST Qwest
158.0.0.0/13 AS568 SUMNET-AS DISO-UNRRA
165.212.0.0/16 AS7424 USANET USA.Net
192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network
192.44.0.0/19 AS702 ALTERNET-AS UUNET Technologies, Inc.
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 AS719 LANLINK autonomous system
192.136.79.0/24 AS719 AS719 LANLINK autonomous system
192.153.136.0/21 AS568 SUMNET-AS DISO-UNRRA
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
198.98.8.0/21 AS3701 NERONET Oregon Joint Graduate Schools of Engineering
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 ATTCA-15290 AT&T Canada Telecom Services Company
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
199.79.32.0/20 AS3701 NERONET Oregon Joint Graduate Schools of Engineering
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
199.166.18.0/24 AS701 ALTERNET-AS UUNET Technologies, Inc.
199.189.32.0/19 AS7332 IQUEST-AS IQuest Internet
199.202.0.0/16 AS701 ALTERNET-AS UUNET Technologies, Inc.
202.0.180.0/24 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
202.3.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.3.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.4.252.0/22 AS4808 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
202.4.255.0/24 AS4799 UNSPECIFIED Ji Tong Communications Co., Ltd.
202.44.112.0/20 AS17458 CWNETDG-IO-AP Cable and Wireless
202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd.
202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street
202.93.64.0/19 AS9425 I-NEXT-AS-AP Inter.net Philippines border AS
202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider
202.136.254.0/23 AS4808 CHINA169-BJ CNCGROUP IP network��China169 Beijing Province Network
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
202.142.130.0/23 AS17820 DIL-AP DIRECT INTERNET LTD.
202.142.132.0/22 AS17820 DIL-AP DIRECT INTERNET LTD.
202.164.192.0/19 AS7599 IPXC-AS-AP IP Exchange
202.165.0.0/19 AS9443 INTERNETPRIMUS-AS-AP Primus Telecommunications
202.174.75.0/24 AS14742 INTERNAP-BLOCK-4 Internap Network Services
202.179.64.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
202.179.65.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
202.179.66.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
202.179.67.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
202.179.68.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India
202.189.234.0/23 AS9658 ETPI-IDS-AS-AP Eastern Telecoms Phils., Inc.
203.10.17.0/24 AS9266 VIPER-AU-AP Vipernet
203.10.18.0/24 AS9266 VIPER-AU-AP Vipernet
203.10.19.0/24 AS9266 VIPER-AU-AP Vipernet
203.10.21.0/24 AS9266 VIPER-AU-AP Vipernet
203.10.22.0/24 AS9266 VIPER-AU-AP Vipernet
203.10.23.0/24 AS9266 VIPER-AU-AP Vipernet
203.32.4.0/23 AS7617 APNIC-AS-2-BLOCK Asia Pacific Network Information Centre
203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet)
203.76.128.0/24 AS9729 IS-AP iAdvantage Limited
203.76.224.0/24 AS9549 COMDEK-ISP-AS-AP Comdek ISP
203.86.2.0/23 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
203.90.192.0/20 AS9658 ETPI-IDS-AS-AP Eastern Telecoms Phils., Inc.
203.129.126.0/24 AS7473 SINGTEL-AS-AP Singapore Telecom
203.129.127.0/24 AS7473 SINGTEL-AS-AP Singapore Telecom
203.132.95.0/24 AS9787 CONCEPT-AU-AP Concept Networks
203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd
203.132.99.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited
203.132.102.0/24 AS9398 ARACHNET-AS-AP Arachnet
203.132.103.0/24 AS9398 ARACHNET-AS-AP Arachnet
203.132.104.0/24 AS9398 ARACHNET-AS-AP Arachnet
203.132.105.0/24 AS9398 ARACHNET-AS-AP Arachnet
203.132.106.0/24 AS9398 ARACHNET-AS-AP Arachnet
203.132.107.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
203.132.108.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
203.132.109.0/24 AS10141 CALOUNDRA-AS-AP Caloundra.net
203.132.110.0/24 AS7598 ALPHALINK-AS-AP Alphalink Pty Limited - Melbourne, Australia
203.132.111.0/24 AS10236 FOXGOLD-NET-AU-AP FOXGOLD COMMUNICATIONS
203.132.112.0/24 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
203.135.224.0/19 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc.
204.29.189.0/24 AS3956 TX-METRO Texas Metronet
204.52.232.0/24 AS7177 DFWNET DFW Internet Services, Inc.
204.89.225.0/24 AS2495 KANREN Kansas Research and Education Network
204.154.126.0/24 AS3952 TELLABS-ASN TELLABS Operations, Inc.
204.194.110.0/23 AS10588 ICSNET Intelligent Computer Solutions, 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
206.82.64.0/18 AS7029 ALLTELNET Alltel Information Services, Inc.
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 ATTCA-15290 AT&T Canada Telecom Services Company
206.251.69.0/24 AS27429 TIL Telesat International Ltd.
207.47.39.0/24 AS816 UUNET-AS4 UUNET Technologies, Inc.
207.162.192.0/19 AS4589 EASYNET Easynet Group Plc
207.231.96.0/19 AS11194 NUNETPA NuNet Inc
208.65.232.0/23 AS701 ALTERNET-AS UUNET Technologies, Inc.
208.81.187.0/24 AS19194 JOVITA Sentris Network LLC
208.104.103.0/24 AS1239 SPRINTLINK Sprint
209.151.128.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc.
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 TELEGLOBE-AS Teleglobe 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.
216.47.32.0/19 AS11304 SPLUS Solutions Plus Inc.
216.96.128.0/18 AS7018 ATT-INTERNET4 AT&T WorldNet Services
216.226.108.0/22 AS3602 SPRINT-CA-AS Sprint Canada Inc.
Please see http://www.cidr-report.org for the full report