Re: IP Prefixes are allocated ..

* Christopher L. Morrow:

...

asn.routeviews.org doesn't do longest-prefix matching, so you need a short Perl script to get the correct ASN, attached below. However,

which means host -t txt <ip> will return more than one record, yes?

Exactly.

so he can just scan for the longest length in the return?

This is what the Perl script does, yes.