This report has been generated at Fri Dec 6 21:44:40 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 29-11-02 117628 84925 30-11-02 117500 84864 01-12-02 117450 84897 02-12-02 117617 84818 03-12-02 117623 84175 04-12-02 116419 84197 05-12-02 116693 84459 06-12-02 116870 84561 AS Summary 14128 Number of ASes in routing system 5562 Number of ASes announcing only one prefix 1716 Largest number of prefixes announced by an AS AS3908 : SUPERNETASBLK SuperNet, Inc. 72949248 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA Possible Bogus AS AS63000 Announced by: AS14522 EC-SASA-LACNIC SatNet S.A. 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'). --- 06Dec02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 116820 84482 32338 27.7% All ASes AS3908 1716 975 741 43.2% SUPERNETASBLK SuperNet, Inc. AS701 1712 1227 485 28.3% ALTERNET-AS UUNET Technologies, Inc. AS18566 395 5 390 98.7% COVAD Covad Communications AS7018 1389 1034 355 25.6% ATT-INTERNET4 AT&T WorldNet Services AS4323 522 185 337 64.6% TW-COMM Time Warner Communications, Inc. AS7843 644 307 337 52.3% ADELPHIA-AS Adelphia Corp. AS6197 458 124 334 72.9% BATI-ATL BellSouth Network Solutions, Inc AS1221 1162 843 319 27.5% ASN-TELSTRA Telstra Pty Ltd AS4355 404 136 268 66.3% ERMS-EARTHLNK EARTHLINK, INC AS6347 351 83 268 76.4% DIAMOND SAVVIS Communications Corporation AS22927 289 22 267 92.4% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS1239 924 663 261 28.2% SPRINTLINK Sprint AS7046 584 323 261 44.7% UUNET-CUSTOMER UUNET Technologies, Inc. AS705 434 195 239 55.1% ASN-ALTERNET UUNET Technologies, Inc. AS4814 248 15 233 94.0% CHINANET-BEIJING-AP China Telecom (Group) AS1 663 439 224 33.8% GNTY-1 Genuity AS6198 417 198 219 52.5% BATI-MIA BellSouth Network Solutions, Inc AS4151 351 135 216 61.5% USDA-1 USDA AS17676 232 28 204 87.9% GIGAINFRA XTAGE CORPORATION AS852 653 464 189 28.9% ASN852 Telus Advanced Communications AS690 508 321 187 36.8% MERIT-AS-27 Merit Network Inc. AS4134 299 115 184 61.5% ERX-CHINALINK Data Communications Bureau AS6595 243 59 184 75.7% DODDSEUR DoD Education Activity Network Assistance Center AS209 520 338 182 35.0% ASN-QWEST Qwest AS2048 262 88 174 66.4% LANET-1 State of Louisiana AS6140 279 127 152 54.5% IMPSAT-USA ImpSat AS6327 183 34 149 81.4% SHAWFIBER Shaw Fiberlink Limited AS2386 374 229 145 38.8% INS-AS AT&T Data Communications Services AS17557 314 172 142 45.2% PKTELECOM-AS-AP Pakistan Telecom AS3215 309 169 140 45.3% AS3215 France Telecom Transpac Total 16839 9053 7786 46.2% 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