[163169] in North American Network Operators' Group

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Re: Geoip lookup

daemon@ATHENA.MIT.EDU (Joe Abley)
Thu May 23 16:32:19 2013

From: Joe Abley <jabley@hopcount.ca>
In-Reply-To: <CAH_OBicTkNqu_Fz07V_aS9y5Jk3eBn_Q8shg=nvcL-vaPLuQaw@mail.gmail.com>
Date: Thu, 23 May 2013 16:32:03 -0400
To: shawn wilson <ag4ve.us@gmail.com>
Cc: North American Network Operators Group <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org


On 2013-05-23, at 15:47, shawn wilson <ag4ve.us@gmail.com> wrote:

> What's the best way to find the networks in a country? I was thinking =
of
> writing some perl with Net::Whois::ARIN or some such module and loop
> through the block. But I think I'll have to be smarter than just a =
simple
> loop not to get blocked and I figure I'm not the first to want to do =
this.

If you are looking for registration data, try looking in one or more of

  ftp://ftp.apnic.net/public/apnic/stats/apnic/
  ftp://ftp.ripe.net/ripe/dbase/
  ftp://ftp.lacnic.net/pub/stats/lacnic/
  ftp://ftp.afrinic.net/stats/afrinic/
  ftp://ftp.arin.net/pub/stats/arin/

(poke around and see what you can find; I didn't spend much time trying, =
but several/all of the RIRs seem to mirror data from all the others)

Note that "networks in a country" is a funny phrase. The sets

 - address space assigned to all organisations located in country X
 - routes visible in country X (from some viewpoint)
 - all addresses assigned to devices physically located within country X
 - routes that are considered "in-country" in places where billing is =
aligned with the necessity to traverse a long bit of wet glass

are frequently incongruent. If this matters, you might want to consider =
a more detailed specification of "networks in a country".


Joe=


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