This is an auto-generated mail on Fri Oct 26 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report@cisco.com>.  ------------------------------------------------------------------------------ CIDR REPORT for 26Oct01 0) General Status Table History ------------- Date Prefixes 191001 104997 201001 104988 211001 104985 221001 105173 231001 105209 241001 104135 251001 103926 261001 104244 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 8804 Number of ASes announcing only one prefix: 3995 (3995 cidr, 0 classful) Largest number of cidr routes: 846 announced by AS701 Largest number of classful routes: 0 announced by  1) Gains by aggregating at the origin AS level --- 26Oct01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1223 940 283 23.1% Telstra Pty Ltd AS4151 298 164 134 45.0% USDA AS13999 136 9 127 93.4% Mega Cable S.A. de C.V. AS16473 196 75 121 61.7% Bell South AS4293 364 257 107 29.4% Cable & Wireless USA AS2048 215 116 99 46.0% State of Louisiana AS271 158 71 87 55.1% University of British Columbia AS4755 215 133 82 38.1% Videsh Sanchar Nigam Ltd. Autonom AS1239 476 400 76 16.0% Sprint AS12302 106 35 71 67.0% MobiFon S.A. AS17557 138 71 67 48.6% Pakistan Telecom AS4200 131 66 65 49.6% Apex Global Information Services, AS3464 161 96 65 40.4% Alabama SuperComputer Network AS19632 72 7 65 90.3% Metropolis Intercom S.A. AS16758 63 6 57 90.5% IKON Office Solutions AS209 304 249 55 18.1% Qwest AS226 144 91 53 36.8% Los Nettos AS4323 273 221 52 19.0% Time Warner Communications, Inc. AS3908 298 247 51 17.1% Supernet, Inc. AS17561 111 60 51 45.9% Internet service provision to Wes AS376 121 73 48 39.7% Reseau Interordinateurs Scientiqu AS10620 69 21 48 69.6% TVCABLE BOGOTA AS1 517 469 48 9.3% BBN Planet AS16814 65 18 47 72.3% NSS, S.A. AS15288 71 24 47 66.2% Alcanet International NA AS15290 247 201 46 18.6% AT&T Canada IES AS2652 129 85 44 34.1% Government Telecommunications and AS10292 70 27 43 61.4% TELECOMMUNICATIONS OF JAMAICA AS5416 51 9 42 82.4% BATELCO-BH AS5103 76 34 42 55.3% Ameritech Advanced Data Services, For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html  2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report  3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report