This report has been generated at Fri Nov 29 21:45:21 2002 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 22-11-02 116795 84759 23-11-02 117137 84733 24-11-02 117342 84973 25-11-02 117875 84933 26-11-02 117560 85077 27-11-02 117565 85161 28-11-02 117576 84918 29-11-02 117628 85008 AS Summary 14099 Number of ASes in routing system 5541 Number of ASes announcing only one prefix 2403 Largest number of prefixes announced by an AS AS3908 : SUPERNETASBLK SuperNet, Inc. 72949760 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'). --- 29Nov02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 117621 84999 32622 27.7% All ASes AS3908 2403 1314 1089 45.3% SUPERNETASBLK SuperNet, Inc. AS701 1714 1237 477 27.8% ALTERNET-AS UUNET Technologies, Inc. AS18566 377 5 372 98.7% COVAD Covad Communications AS7018 1406 1038 368 26.2% ATT-INTERNET4 AT&T WorldNet Services AS7843 664 300 364 54.8% ADELPHIA-AS Adelphia Corp. AS4323 526 184 342 65.0% TW-COMM Time Warner Communications, Inc. AS6197 460 123 337 73.3% BATI-ATL BellSouth Network Solutions, Inc AS1221 1176 853 323 27.5% ASN-TELSTRA Telstra Pty Ltd AS7046 585 296 289 49.4% UUNET-CUSTOMER UUNET Technologies, Inc. AS6347 358 81 277 77.4% DIAMOND SAVVIS Communications Corporation AS4355 403 136 267 66.3% ERMS-EARTHLNK EARTHLINK, INC AS22927 275 20 255 92.7% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS1239 911 658 253 27.8% SPRINTLINK Sprint AS6198 420 167 253 60.2% BATI-MIA BellSouth Network Solutions, Inc AS705 439 206 233 53.1% ASN-ALTERNET UUNET Technologies, Inc. AS4814 248 15 233 94.0% CHINANET-BEIJING-AP China Telecom (Group) AS1 663 440 223 33.6% GNTY-1 Genuity AS4151 352 149 203 57.7% USDA-1 USDA AS852 669 468 201 30.0% ASN852 Telus Advanced Communications AS17557 314 123 191 60.8% PKTELECOM-AS-AP Pakistan Telecom AS6595 243 58 185 76.1% DODDSEUR DoD Education Activity Network Assistance Center AS4134 299 117 182 60.9% ERX-CHINALINK Data Communications Bureau AS209 519 338 181 34.9% ASN-QWEST Qwest AS17676 230 50 180 78.3% GIGAINFRA XTAGE CORPORATION AS690 506 334 172 34.0% MERIT-AS-27 Merit Network Inc. AS2048 260 88 172 66.2% LANET-1 State of Louisiana AS6140 268 103 165 61.6% IMPSAT-USA ImpSat AS6327 182 33 149 81.9% SHAWFIBER Shaw Fiberlink Limited AS7132 215 67 148 68.8% SBIS-AS Southwestern Bell Internet Services AS2386 364 223 141 38.7% INS-AS AT&T Data Communications Services Total 17449 9224 8225 47.1% Top 30 total Please see http://www.cidr-report.org 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