This report has been generated at Fri Jan 2 21:47:21 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
26-12-03 129101 90485
27-12-03 129152 90411
28-12-03 128993 90454
29-12-03 129056 90534
30-12-03 129312 90459
31-12-03 129124 90575
01-01-04 129207 90551
02-01-04 129307 90461
AS Summary
16314 Number of ASes in routing system
6526 Number of ASes announcing only one prefix
1395 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 AT&T WorldNet Services
73402112 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').
--- 02Jan04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 129175 90402 38773 30.0% All ASes
AS4134 709 124 585 82.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS6197 823 296 527 64.0% BATI-ATL BellSouth Network
Solutions, Inc
AS4323 675 204 471 69.8% TW-COMM Time Warner
Communications, Inc.
AS7018 1395 960 435 31.2% ATT-INTERNET4 AT&T WorldNet
Services
AS701 1386 955 431 31.1% ALTERNET-AS UUNET
Technologies, Inc.
AS7843 508 117 391 77.0% ADELPHIA-AS Adelphia Corp.
AS6198 569 228 341 59.9% BATI-MIA BellSouth Network
Solutions, Inc
AS22909 320 13 307 95.9% DNEO-OSP1 Comcast Cable
Communications, Inc.
AS27364 381 81 300 78.7% ACS-INTERNET Armstrong Cable
Services
AS22773 327 31 296 90.5% CCINET-2 Cox Communications
Inc. Atlanta
AS1239 957 669 288 30.1% SPRINTLINK Sprint
AS4355 380 101 279 73.4% ERMS-EARTHLNK EARTHLINK, INC
AS1221 912 657 255 28.0% ASN-TELSTRA Telstra Pty Ltd
AS17676 290 42 248 85.5% GIGAINFRA Softbank BB Corp.
AS6347 325 83 242 74.5% DIAMOND SAVVIS Communications
Corporation
AS25844 243 16 227 93.4% SKADDEN1 Skadden, Arps, Slate,
Meagher & Flom LLP
AS9583 273 55 218 79.9% SATYAMNET-AS Satyam Infoway
Ltd.,
AS209 730 515 215 29.5% ASN-QWEST Qwest
AS6140 351 136 215 61.3% IMPSAT-USA ImpSat
AS14654 206 3 203 98.5% WAYPORT Wayport
AS11305 231 38 193 83.5% INTERLAND-NET1 Interland
Incorporated
AS4519 194 13 181 93.3% MAAS Maas Communications
AS6478 218 41 177 81.2% ATT-INTERNET3 AT&T WorldNet
Services
AS9929 204 27 177 86.8% CNCNET-CN China Netcom Corp.
AS6327 204 28 176 86.3% SHAW Shaw Communications Inc.
AS2386 408 239 169 41.4% INS-AS AT&T Data
Communications Services
AS20115 581 414 167 28.7% CHARTER-NET-HKY-NC Charter
Communications
AS15270 204 41 163 79.9% AS-PAETEC-NET PaeTec.net -a
division of
PaeTecCommunications, Inc.
AS2048 245 83 162 66.1% LANET-1 State of Louisiana
AS4766 389 234 155 39.8% KIX Korea Internet Exchange
for "96 World Internet
Exposition
Total 14638 6444 8194 56.0% Top 30 total
Possible Bogus Routes
24.138.80.0/20 AS11260 ANDARA-HSI Andara High Speed Internet c/o Halifax Cable Ltd.
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
64.62.64.0/24 AS3549 GBLX Global Crossing
64.62.126.0/23 AS25700 SWIFTDESK SWIFTDESK VENTURE
66.41.192.0/18 AS13367 CCCH-AS3 Comcast Cable Communications Holdings, 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
140.143.2.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd
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 AS719 LANLINK autonomous system
192.136.79.0/24 AS719 AS719 LANLINK autonomous system
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.
198.41.194.0/24 AS1982 ASN-NWNEXUS Northwest Nexus 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.
200.120.0.0/16 AS22047 CL-VPNS-LACNIC VTR BANDA ANCHA S.A.
202.0.180.0/24 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
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.
202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
202.72.112.0/22 AS22351 INTELSAT-1 INTELSAT
202.122.76.0/24 AS17553 TIMELESS-AP System Integration provider
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
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.
203.132.95.0/24 AS9787 CONCEPT-AU-AP Concept Networks
203.132.97.0/24 AS7652 VIANET-AS-AP Vianet Communications Pty Ltd
203.132.107.0/24 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
203.132.111.0/24 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
204.19.224.0/19 AS816 UUNET-AS4 UUNET Technologies, Inc.
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
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.
207.47.39.0/24 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
208.81.187.0/24 AS19194 JOVITA Sentris Network LLC
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.
209.196.192.0/19 AS1784 GNAPS Global NAPs Networks
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
220.228.0.0/16 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.0.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.0.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.32.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.64.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.96.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.128.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.128.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.160.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.192.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.228.224.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.0.0/16 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.0.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.0.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.32.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.64.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.96.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.128.0/17 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.128.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.160.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.192.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
220.229.224.0/19 AS9919 NCIC-TW New Century InfoComm Tech Co., Ltd.
Please see http://www.cidr-report.org for the full report