North American Network Operators Group
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Re: Using RIR info to determine geographic location...

  • From: Steven M. Bellovin
  • Date: Mon Dec 24 14:59:21 2007 
On Mon, 24 Dec 2007 00:23:00 -0600
"James Hess" <[email protected]> wrote:

> On the other hand, it's perhaps the best geolocators can  _try_ to
> do...
> 
> Short of geolocation services manually calling ISPs and asking.../
> making deals with major ISPs to procure lists of geographic regions
> and assigned IPs in those regions.
> 
> I suppose that in theory proper geolocation close to 95% of IPs for
> page access requests would occur then (provided 95% of page access
> requests came from providers  they had that type of direct
> information from)

See
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6,947,978.PN.&OS=PN/6,947,978&RS=PN/6,947,978
for another approach.


		--Steve Bellovin, http://www.cs.columbia.edu/~smb