Re: mapping ip addresses to domains

For my purposes i am trying to match ip addresses to companies.  Looking at the data thus far, it seems pretty
rare that the poc domains do not match a company domain.  It's not horrible for me if using domain of pocs is
not 100% accurate as i am only enriching the data output of a report.

Thanks for your help!

-karl

On Mar 30, 2012, at 11:00 AM, Schiller, Heather A wrote:

> 
> If it's the domains you are after, don't make the broad assumption that they match cleanly or mean anything
in relation to the IP.  There is no requirement that the domain used in the email address on a poc record, be
unique to that assignment/company or belong to them.  For example, if a poc record has  <at> gmail.com that
doesn't mean the IP's have anything to do with Google.  I can't imagine that the domain portion of an email
address generates anything reliably useful for any purpose.
> 
> --Heather
> 
> -----Original Message-----
> From: arin-tech-discuss-bounces@...
[mailto:arin-tech-discuss-bounces@...] On Behalf Of David Huberman
> Sent: Thursday, March 29, 2012 5:15 PM
> To: Karl Baum; arin-tech-discuss@...
> Subject: Re: [arin-tech-discuss] mapping ip addresses to domains
> 
> Hiya Karl,
> 
> Service providers have the option of registering reassignments either with or without customer POC
information.  In the cases when they choose not to publish customer POC information (and thus the network