Finding ASN from IP address

Thu Oct 9 17:43:24 UTC 2003

On 10/9/03 9:49 AM, "Avleen Vig" <lists-nanog at silverwraith.com> wrote:

> 
> I want to create a mapping of IP addresses to ASN, for a specific like
> of IP addresses. Eg:
> 1.2.3.4
> 12.34.56.78
> 
> etc, gathered from my system logs.
> 
> What is the best way of doing this?
> 
Well, if you are not adverse to using a pre-existing tool, the Team CYMRU
folks have been kind enough to provide a server that does just that.

whois -h whois.cymru.com 66.119.192.4
ASN     | IP               | Name
16713   | 66.119.192.4     | NOANET-WA Northwest Open Acces

Mike
-- 
Michael K. Smith          NoaNet
206.219.7116 (work)       206.579.8360 (cell)
mksmith at noanet.net        http://www.noanet.net