Hi Richard, I was working on almost the same thing... :-) As from next Friday, my routing report will include the top 20 ASes which are announcing prefixes more specific than the registry minimum allocation (/20), more specific than a /24 from 192/8 space, more specific than a /16 from former B space, more specific than a /8 from former A space... A taster follows: Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Description 701 1584 UUNET Technologies, Inc. 1221 1580 Telstra 705 1490 UUNET Technologies, Inc. 2764 866 connect.com.au pty ltd 3491 651 CAIS Internet 7046 623 UUNET Technologies, Inc. 690 502 Merit Network 4293 481 Cable & Wireless USA 18994 468 Global Crossing 7018 437 AT&T 15870 436 Global Center Frankfurt 1 429 BBN Planet 702 423 UUNET Technologies, Inc. 1239 364 Sprint ICM-Inria 209 350 Qwest 5106 343 Ameritech Advanced Data Servi 3561 332 Cable & Wireless USA 18993 325 Global Crossing 11371 307 Rhythms NetConnections 4323 303 Time Warner Communications, I There is no attempt to measure aggregation - that's the job of the CIDR Report. This simply looks at the prefix announced and if it is outside the above limits, it is counted. Makes very interesting reading... philip -- At 13:53 08/06/2001 -0400, Richard A. Steenbergen wrote:
On Fri, Jun 08, 2001 at 09:31:03AM -0700, Karyn Ulriksen wrote:
I had a full /19 sliced and diced up into /24 until yesterday when I officially completed my data center migration. None appear in the list below. How recent is this information?
Woops, I was running this against an old routing table. My appologies.
I've updated the list to reflect a routing table taken this morning from 1720 (CERF) and 3967 (Exodus) transit. I'm still debugging the parser, so it may not be 100% perfect, but the point remains the same.
The url is the same: http://www.e-gerbil.net/ras/projects/ipaddr/24amuck.txt
-- Richard A Steenbergen <ras@e-gerbil.net> http://www.e-gerbil.net/ras PGP Key ID: 0x138EA177 (67 29 D7 BC E8 18 3E DA B2 46 B3 D8 14 36 FE B6)