ISP Address Allocation

Jeff Haas jeffhaas at
Mon Nov 15 20:52:27 UTC 1999

On Sun, Nov 14, 1999 at 05:08:32PM -0500, jlewis at wrote:
> Another possibility is go to a route server, and play around with show ip
> bgp regex...and look up the resulting networks to see who "owns" them.

For registries using the Merit IRR daemon, one can get the list of
all netblocks an AS has registered using the backend interface documented
in Appendix B of the IRRd manual.

The manual is at

For example, Merit AS 237 would be
$ whois -h \!gas237

>  Jon Lewis *jlewis at*|  Spammers will be winnuked or 

Jeffrey Haas - Merit RSng project - jeffhaas at

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