[86997] in North American Network Operators' Group
Re: IP Prefixes are allocated ..
daemon@ATHENA.MIT.EDU (Joe Abley)
Mon Nov 28 09:55:44 2005
In-Reply-To: <92c950310511272215s340021e8j26770d28cdcdbb9d@mail.gmail.com>
Cc: NANOG list <nanog@merit.edu>
From: Joe Abley <jabley@isc.org>
Date: Mon, 28 Nov 2005 09:55:10 -0500
To: Glen Kent <glen.kent@gmail.com>
Errors-To: owner-nanog@merit.edu
On 28-Nov-2005, at 01:15, Glen Kent wrote:
> to different Autonomous systems.
No, but...
> Is there a central/distributed database somewhere that can tell me
> that this particular IP prefix (say x.y.z.w) has been given to foo AS
> number?
>
> I tried searching through all the WHOIS records for a domain name. I
> get the IP address but i dont get the AS number.
... if you want to know which AS is originating a prefix which covers
a particular address right now, you can always use whois.cymru.com:
[halibut:~]$ whois -h whois.cymru.com 203.97.1.241
ASN | IP | Name
4768 | 203.97.1.241 | CLIX-NZ TelstraClear Ltd
[halibut:~]$
Joe
