Chris,
If you want to contact the operators of these networks please read the objects carefully. In the ARIN database address space allocated by other regional registries (RIPE NCC in Europe & APNIC in Asia/Pacific)
Yep - being in Europe I am aware of this :-P
Alex Bligh writes
Would it be possible to take the amplifier list and publish an abbreviated version sorted by origin AS (will need a BGP lookup).
This information is also available from the (various) routing registries. See the 'route:' object above.
The trouble is I suspect there is a high correlation between those people who have not yet employed "no ip directed broadcast" and those who have non-existant or incorrect route entries. Also some large NSPs don't register route entries (Sprint being a good example). -- Alex Bligh GX Networks (formerly Xara Networks)