North American Network Operators Group

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Re: IP Prefixes are allocated ..

  • From: Jon Lewis
  • Date: Mon Nov 28 07:52:07 2005

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
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 |
_________ for PGP public key_________