[apops] The Cidr Report

This report has been generated at Fri Dec 13 21:45:30 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
        06-12-02 116870 84511
        07-12-02 116855 84559
        08-12-02 116930 84442
        09-12-02 116755 84596
        10-12-02 116879 84724
        11-12-02 117039 84740
        12-12-02 117133 84733
        13-12-02 116860 84827

AS Summary
         14178 Number of ASes in routing system
          5599 Number of ASes announcing only one prefix
          1805 Largest number of prefixes announced by an AS
                AS3908 : SUPERNETASBLK SuperNet, Inc.
      72982528 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').

--- 13Dec02 ---
ASnum NetsNow NetsAggr NetGain % Gain Description

Table 116935 84790 32145 27.5% All ASes

AS3908 1805 1063 742 41.1% SUPERNETASBLK SuperNet, Inc.
AS701 1676 1219 457 27.3% ALTERNET-AS UUNET
                                               Technologies, Inc.
AS18566 419 5 414 98.8% COVAD Covad Communications
AS7018 1389 1014 375 27.0% ATT-INTERNET4 AT&T WorldNet
                                               Services
AS4323 524 185 339 64.7% TW-COMM Time Warner
                                               Communications, Inc.
AS1221 1162 843 319 27.5% ASN-TELSTRA Telstra Pty Ltd
AS6197 456 141 315 69.1% BATI-ATL BellSouth Network
                                               Solutions, Inc
AS7843 596 295 301 50.5% ADELPHIA-AS Adelphia Corp.
AS4355 405 136 269 66.4% ERMS-EARTHLNK EARTHLINK, INC
AS6347 352 85 267 75.9% DIAMOND SAVVIS Communications
                                               Corporation
AS7046 586 319 267 45.6% UUNET-CUSTOMER UUNET
                                               Technologies, Inc.
AS22927 289 22 267 92.4% AR-TEAR2-LACNIC TELEFONICA DE
                                               ARGENTINA
AS1239 935 670 265 28.3% SPRINTLINK Sprint
AS705 434 195 239 55.1% ASN-ALTERNET UUNET
                                               Technologies, Inc.
AS4814 249 15 234 94.0% CHINANET-BEIJING-AP China
                                               Telecom (Group)
AS1 665 440 225 33.8% GNTY-1 Genuity
AS6198 420 201 219 52.1% BATI-MIA BellSouth Network
                                               Solutions, Inc
AS17676 232 28 204 87.9% GIGAINFRA XTAGE CORPORATION
AS690 513 319 194 37.8% MERIT-AS-27 Merit Network Inc.
AS6140 314 121 193 61.5% IMPSAT-USA ImpSat
AS4151 326 135 191 58.6% USDA-1 USDA
AS4134 292 108 184 63.0% ERX-CHINALINK Data
                                               Communications Bureau
AS209 519 339 180 34.7% ASN-QWEST Qwest
AS852 625 445 180 28.8% ASN852 Telus Advanced
                                               Communications
AS2048 260 88 172 66.2% LANET-1 State of Louisiana
AS6327 183 34 149 81.4% SHAWFIBER Shaw Fiberlink
                                               Limited
AS2386 377 232 145 38.5% INS-AS AT&T Data
                                               Communications Services
AS17557 314 173 141 44.9% PKTELECOM-AS-AP Pakistan
                                               Telecom
AS3215 308 170 138 44.8% AS3215 France Telecom
                                               Transpac
AS702 807 670 137 17.0% AS702 UUNET - Commercial IP
                                               service provider in Europe

Total 17432 9710 7722 44.3% Top 30 total

Please see http://www.cidr-report.org for the full report