[86996] in North American Network Operators' Group
Re: IP Prefixes are allocated ..
daemon@ATHENA.MIT.EDU (Jon Lewis)
Mon Nov 28 07:51:23 2005
Date: Mon, 28 Nov 2005 07:50:54 -0500 (EST)
From: Jon Lewis <jlewis@lewis.org>
To: Glen Kent <glen.kent@gmail.com>
Cc: NANOG list <nanog@merit.edu>
In-Reply-To: <92c950310511272215s340021e8j26770d28cdcdbb9d@mail.gmail.com>
Errors-To: owner-nanog@merit.edu
On Mon, 28 Nov 2005, Glen Kent wrote:
> to different Autonomous systems.
>
> 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?
Prefixes aren't assigned to ASNs. They're assigned to
organizations/networks. Those entities may have several ASNs or no ASN of
their own. You can see what ASN(s) annnounce what prefixes by looking at
BGP.
----------------------------------------------------------------------
Jon Lewis | I route
Senior Network Engineer | therefore you are
Atlantic Net |
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