This report has been generated at Fri Sep 13 20:32:14 2002 AEST. The report analyses the BGP Routing Table of the Route-Views router and generates a report on aggregation potential within the table. Check http://bgp.potaroo.net/cidr for a current version of this report. Recent Table History Date Prefixes 06-09-02 121201 07-09-02 121195 08-09-02 121134 09-09-02 121168 10-09-02 121129 11-09-02 121290 12-09-02 121145 13-09-02 121338 Possible Bogus Routes 39.0.0.0/8 AS4554 EP0-BLK-ASNBLOCK-4 Exchange Point Blocks AS Summary 13879 Number of ASes in routing system 5303 Number of ASes announcing only one prefix 1798 Largest number of prefixes announced by an AS AS209 : ASN-QWEST Qwest 73089280 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 not proposed across non-advertised address space ('holes'). --- 13Sep02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 121140 87526 33614 27.7% All ASes AS209 1798 1040 758 42.2% ASN-QWEST Qwest AS3908 1134 633 501 44.2% SUPERNETASBLK SuperNet, Inc. AS2548 1575 1125 450 28.6% ICIX-MD-AS Business Internet, Inc. AS7132 603 185 418 69.3% SBIS-AS Southwestern Bell Internet Services AS701 1761 1349 412 23.4% ALTERNET-AS UUNET Technologies, Inc. AS7018 1348 958 390 28.9% ATT-INTERNET4 AT&T WorldNet Services AS1221 1302 940 362 27.8% ASN-TELSTRA Telstra Pty Ltd AS4323 648 300 348 53.7% TW-COMM Time Warner Communications, Inc. AS7843 674 374 300 44.5% ADELPHIA-AS Adelphia Corp. AS6197 382 85 297 77.7% BATI-ATL BellSouth Network Solutions, Inc AS7046 612 316 296 48.4% UUNET-CUSTOMER UUNET Technologies, Inc. AS852 738 457 281 38.1% ASN852 Telus Advanced Communications AS18566 270 4 266 98.5% COVAD Covad Communications AS6347 396 139 257 64.9% DIAMOND SAVVIS Communications Corporation AS4151 283 32 251 88.7% USDA-1 USDA AS1 681 447 234 34.4% GNTY-1 Genuity AS4814 229 30 199 86.9% CHINANET-BEIJING-AP China Telecom (Group)Beijing Telecom CompanyBeijing China AS690 519 326 193 37.2% NSFNET-T3-RT-AS Merit Network Inc. AS4355 360 172 188 52.2% ERMS-EARTHLNK EARTHLINK, INC AS1239 844 657 187 22.2% SprintLink Sprint AS9942 248 71 177 71.4% COMINDICO-AP COMindico Australia AS2386 416 240 176 42.3% INS-AS AT&T Data Communications Services AS4134 302 133 169 56.0% ERX-CHINALINK Data Communications Bureau AS6595 246 78 168 68.3% DODDSEUR DoD Education Activity Network Assistance Center AS3356 389 222 167 42.9% LEVEL3 Level 3 Communications, LLC AS1791 186 23 163 87.6% SPRINTLINK3 Sprint Government Systems Division AS11371 169 7 162 95.9% UUNET-AS-11371 UUNET Technologies, Inc. AS1564 162 4 158 97.5% HQ, 5th Signal Command AS6327 171 16 155 90.6% SHAWFIBER Shaw Fiberlink Limited AS17676 220 65 155 70.5% GIGAINFRA APNIC ASN block Total 18666 10428 8238 44.1% Top 30 total Please see http://bgp.potaroo.net/cidr for the full report ------------------------------------ Copies of this report are mailed to: nanog@merit.edu eof-list@ripe.net apops@lists.apnic.net routing-wg@ripe.net afnog@afnog.org