This is an auto-generated mail on Fri Jul 26 23:00:01 PDT 2002 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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 amount 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 26Jul02 0) General Status Table History ------------- Date Prefixes 190702 111736 200702 112010 210702 111833 220702 111748 230702 111737 240702 111820 250702 112023 260702 112031 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: 13332 Number of ASes announcing only one prefix: 8124 (4581 cidr, 3543 classful) Largest number of cidr routes: 638 announced by AS3908 Largest number of classful routes: 1206 announced by AS701  1) Gains by aggregating at the origin AS level --- 26Jul02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1088 838 250 23.0% Telstra Pty Ltd AS701 1206 967 239 19.8% UUNET Technologies, Inc. AS17557 293 101 192 65.5% Pakistan Telecom AS6595 230 58 172 74.8% DoD Education Activity Network As AS852 541 404 137 25.3% Telus Advanced Communications AS7018 808 681 127 15.7% AT&T AS16473 195 77 118 60.5% Bell South AS7303 170 73 97 57.1% Telecom Argentina Stet-France Tel AS1239 514 417 97 18.9% Sprint AS4151 237 142 95 40.1% USDA AS19632 99 5 94 94.9% Metropolis Intercom S.A. AS12302 118 25 93 78.8% MobiFon S.A. AS16814 105 20 85 81.0% NSS, S.A. AS226 171 88 83 48.5% Los Nettos AS7046 299 222 77 25.8% UUNET Technologies, Inc. AS4755 208 132 76 36.5% Videsh Sanchar Nigam Ltd. Autonom AS577 264 191 73 27.7% Bell Advanced Communications Inc. AS2149 347 274 73 21.0% Performance Systems, Inc. AS2048 179 107 72 40.2% State of Louisiana AS724 228 160 68 29.8% DLA Systems Automation Center AS4323 402 334 68 16.9% Time Warner Communications, Inc. AS3464 163 103 60 36.8% Alabama SuperComputer Network AS19834 64 4 60 93.8% NetForce, Inc. AS10620 85 25 60 70.6% TVCABLE BOGOTA AS16758 63 6 57 90.5% IKON Office Solutions AS5515 242 186 56 23.1% Sonera Finland Autonomous System AS3908 299 243 56 18.7% Supernet, Inc. AS209 311 255 56 18.0% Qwest AS9498 83 29 54 65.1% BHARTI BT INTERNET LTD. AS9051 81 27 54 66.7% INCONET Autonomous System Total 55129 42479 12650 22.9% 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