[AusNOG] Efficient use of whois

[Alex Samad]

Hi

I am looking at processing some logs of ip addresses, I would like to
convert the ip's into hostname (that one is easy), BGP ASN and / or WHOIS
info.

What is an efficient way of doing this without abusing any service provider
that provides this.

I am planning on doing this in perl

quick google found me this
http://www.team-cymru.org/IP-ASN-mapping.html

No going to be processing that many looks like about 200 ip's

I notice that team-cymru service isn't complete, for example it has no idea
of 160.82.0.0

are there any other services what provide this sort of service


Alex
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