This report has been generated at Fri Feb 20 21:47:50 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
13-02-04 131225 91573
14-02-04 131314 91491
15-02-04 131233 91647
16-02-04 131350 91764
17-02-04 131484 91764
18-02-04 131572 91814
19-02-04 131618 91835
20-02-04 131753 91795
AS Summary
16600 Number of ASes in routing system
6654 Number of ASes announcing only one prefix
1385 Largest number of prefixes announced by an AS
AS7018 : ATTW AT&T WorldNet Services
73517312 Largest address span announced by an AS (/32s)
AS568 : DISOUN 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').
--- 20Feb04 ---
ASnum NetsNow NetsAggr NetGain % Gain Description
Table 131836 91842 39994 30.3% All ASes
AS4323 692 202 490 70.8% TWC-34 Time Warner
Communications, Inc.
AS6197 733 299 434 59.2% BNS-14 BellSouth Network
Solutions, Inc
AS7018 1385 967 418 30.2% ATTW AT&T WorldNet Services
AS701 1324 949 375 28.3% UU UUNET Technologies, Inc.
AS7843 505 132 373 73.9% ADELPH-13 Adelphia Corp.
AS27364 382 33 349 91.4% ARMC Armstrong Cable Services
AS6198 545 214 331 60.7% BNS-14 BellSouth Network
Solutions, Inc
AS4134 653 330 323 49.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS22909 342 20 322 94.2% CMCS Comcast Cable
Communications, Inc.
AS22773 344 35 309 89.8% CXAB Cox Communications Inc.
Atlanta
AS9583 354 47 307 86.7% SATYAMNET-AS Satyam Infoway
Ltd.,
AS1239 945 661 284 30.1% SPRN Sprint
AS4355 385 101 284 73.8% ERSD EARTHLINK, INC
AS17676 294 41 253 86.1% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS1221 897 645 252 28.1% ASN-TELSTRA Telstra Pty Ltd
AS6347 330 83 247 74.8% SAVV SAVVIS Communications
Corporation
AS6478 268 39 229 85.4% ATTW AT&T WorldNet Services
AS25844 243 16 227 93.4% SASMFL-2 Skadden, Arps, Slate,
Meagher & Flom LLP
AS6140 357 134 223 62.5% IMPSA ImpSat
AS14654 216 4 212 98.1% WAYPOR-3 Wayport
AS209 716 505 211 29.5% QWEST-4 Qwest
AS11305 242 41 201 83.1% INTERL-80 Interland
Incorporated
AS2386 426 233 193 45.3% ADCS-1 AT&T Data
Communications Services
AS5668 346 158 188 54.3% CIH-12 CenturyTel Internet
Holdings, Inc.
AS20115 608 422 186 30.6% CHARTE-72 Charter
Communications
AS4519 203 20 183 90.1% MAASCO Maas Communications
AS6327 207 29 178 86.0% SHAWC-2 Shaw Communications
Inc.
AS9929 208 30 178 85.6% CNCNET-CN China Netcom Corp.
AS4766 418 247 171 40.9% KIX Korea Internet Exchange
for "96 World Internet
Exposition
AS15270 211 40 171 81.0% PDP-14 PaeTec.net -a division
of PaeTecCommunications, Inc.
Total 14779 6677 8102 54.8% Top 30 total
Possible Bogus Routes
24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd.
63.0.0.0/8 AS705 UU UUNET Technologies, Inc.
64.46.0.0/18 AS7850 IHIGHW iHighway.net, Inc.
64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS
64.46.12.0/24 AS7850 IHIGHW iHighway.net, Inc.
64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB
64.46.34.0/24 AS3408
64.46.60.0/24 AS7850 IHIGHW iHighway.net, Inc.
64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc.
64.62.126.0/23 AS25700 SWIFTD SWIFTDESK VENTURE
66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc.
66.114.28.0/24 AS15083 INMM Infolink Communication Services, Inc.
66.114.29.0/24 AS15083 INMM Infolink Communication Services, Inc.
66.114.30.0/24 AS15083 INMM Infolink Communication Services, Inc.
66.114.31.0/24 AS15083 INMM Infolink Communication Services, Inc.
69.8.128.0/17 AS7260 NORL Norlight Telecommunications
132.0.0.0/10 AS568 DISOUN DISO-UNRRA
137.0.0.0/13 AS568 DISOUN DISO-UNRRA
138.136.0.0/13 AS568 DISOUN DISO-UNRRA
158.0.0.0/13 AS568 DISOUN DISO-UNRRA
192.30.92.0/24 AS17757 HPAUS-AP HP Australia
192.30.93.0/24 AS17757 HPAUS-AP HP Australia
192.30.94.0/24 AS17757 HPAUS-AP HP Australia
192.30.96.0/24 AS10221 HEWLETT-PACKARD Multi-homed connections to multiple ISP's providing
192.30.127.0/24 AS719 LANLINK Elisa Oyj
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
192.81.182.0/24 AS719 LANLINK Elisa Oyj
192.81.183.0/24 AS719 LANLINK Elisa Oyj
192.81.184.0/24 AS719 LANLINK Elisa Oyj
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 NASA 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 Autonomous System
192.135.50.0/24 AS7018 ATTW 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 DISOUN DISO-UNRRA
192.172.0.0/19 AS568 DISOUN DISO-UNRRA
192.188.208.0/20 AS568 DISOUN DISO-UNRRA
192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc.
198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc.
198.97.72.0/21 AS568 DISOUN DISO-UNRRA
198.97.80.0/20 AS568 DISOUN DISO-UNRRA
198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center
198.97.192.0/20 AS568 DISOUN DISO-UNRRA
198.97.240.0/20 AS568 DISOUN DISO-UNRRA
198.101.4.0/22 AS568 DISOUN DISO-UNRRA
198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners
198.144.32.0/19 AS3998 CITY CityNet, Inc.
198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp.
198.161.165.0/24 AS852 AGTA Telus Advanced Communications
198.163.155.0/24 AS684 MRN Manitoba Regional Network
198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc.
198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream
198.168.0.0/16 AS701 UU UUNET Technologies, Inc.
198.169.0.0/16 AS803 SASK SaskTel
198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc
199.10.0.0/16 AS568 DISOUN DISO-UNRRA
199.60.0.0/20 AS271 UBC-3 University of British Columbia
199.84.0.0/16 AS701 UU UUNET Technologies, Inc.
199.114.0.0/18 AS568 DISOUN DISO-UNRRA
199.114.0.0/21 AS568 DISOUN DISO-UNRRA
199.114.128.0/18 AS568 DISOUN DISO-UNRRA
199.114.130.0/24 AS721 DNIC DoD Network Information Center
199.114.132.0/24 AS721 DNIC DoD Network Information Center
199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency
199.114.138.0/24 AS721 DNIC DoD Network Information Center
199.114.140.0/24 AS3544 DISAUN DISA/UNRRA
199.114.142.0/24 AS721 DNIC DoD Network Information Center
199.114.144.0/24 AS721 DNIC DoD Network Information Center
199.114.148.0/24 AS721 DNIC DoD Network Information Center
199.114.150.0/24 AS721 DNIC DoD Network Information Center
199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency
199.114.154.0/24 AS1733 ADP-41 AF DDN PMO
199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency
199.114.160.0/24 AS1733 ADP-41 AF DDN PMO
199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC.
199.121.0.0/16 AS568 DISOUN DISO-UNRRA
199.123.0.0/18 AS568 DISOUN DISO-UNRRA
199.123.16.0/20 AS568 DISOUN DISO-UNRRA
199.123.80.0/21 AS568 DISOUN DISO-UNRRA
199.189.32.0/19 AS7332 IQUEST IQuest Internet
199.202.0.0/16 AS701 UU UUNET Technologies, Inc.
202.2.64.0/20 AS9729 IS-AP iAdvantage Limited
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)
202.70.24.0/24 AS17888 SINGTEL-HK SingTel Hong Kong Limited
202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd.
202.70.240.0/20 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd.
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 HAWAI-1 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
202.134.128.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.129.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.130.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.131.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.132.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.133.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.134.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.135.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.136.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.134.137.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom
202.143.56.0/21 AS4761 INDOSAT1-AP INDOSATNET-ASN
202.149.240.0/20 AS4761 INDOSAT1-AP INDOSATNET-ASN
202.149.240.0/21 AS4761 INDOSAT1-AP INDOSATNET-ASN
202.149.248.0/21 AS4761 INDOSAT1-AP INDOSATNET-ASN
202.155.243.0/24 AS4795 INDOSAT2-ID-AP INDOSATNET-ASN
202.170.128.0/22 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
202.170.133.0/24 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
202.170.134.0/23 AS4755 VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System
203.32.4.0/23 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.
203.87.224.0/19 AS4799 CHINA169-JT CNCGROUP old Jitong IP network
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.
204.69.144.0/22 AS5668 CIH-12 CenturyTel Internet Holdings, Inc.
204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc.
204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc.
204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc.
204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc.
205.150.0.0/15 AS701 UU UUNET Technologies, Inc.
206.41.32.0/19 AS14824 NCC-105 NewSouth Communications Corp.
206.81.187.0/24 AS19194 SNL-8 Sentris Network LLC
206.108.34.0/24 AS852 AGTA Telus Advanced Communications
206.108.35.0/24 AS852 AGTA Telus Advanced Communications
206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ)
206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream
206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd.
207.162.192.0/19 AS4589 EASYNET Easynet Group Plc
207.231.96.0/19 AS11194 NUNETI NuNet Inc
208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC
209.169.219.0/24 AS189 GNTY Genuity
209.169.223.0/24 AS189 GNTY Genuity
209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc.
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.
209.205.95.0/24 AS6347 SAVV SAVVIS Communications Corporation
209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services
209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services
209.222.137.0/24 AS27429 TIL-33 Telesat International Ltd.
209.240.96.0/19 AS10815 KCNETI-1 KCnet, Inc.
209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc
209.251.64.0/19 AS10266 MDCN MDC, Inc.
210.213.0.0/19 AS6453 GIEUROPE Teleglobe America Inc.
216.18.224.0/21 AS11458 IMBRIS-1 IMBRIS, INC.
216.18.224.0/22 AS11458 IMBRIS-1 IMBRIS, INC.
216.18.228.0/22 AS11458 IMBRIS-1 IMBRIS, INC.
216.36.46.0/24 AS7176 GTEIEUROPE-AS Genuity European AS
216.36.47.0/24 AS7176 GTEIEUROPE-AS Genuity European AS
216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services
Please see http://www.cidr-report.org for the full report