[63700] in North American Network Operators' Group
Re: Finding ASN from IP address
daemon@ATHENA.MIT.EDU (Michael K. Smith)
Thu Oct 9 14:08:39 2003
Date: Thu, 09 Oct 2003 10:43:24 -0700
From: "Michael K. Smith" <mksmith@noanet.net>
To: Avleen Vig <lists-nanog@silverwraith.com>,
Nanog <nanog@merit.edu>
In-Reply-To: <20031009164931.GU77423@silverwraith.com>
Errors-To: owner-nanog-outgoing@merit.edu
On 10/9/03 9:49 AM, "Avleen Vig" <lists-nanog@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@noanet.net http://www.noanet.net
