[arin-tech-discuss] mapping ip addresses to domains

[Karl Baum]

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 @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 at arin.net [mailto:arin-tech-discuss-bounces at arin.net] On Behalf Of David Huberman
> Sent: Thursday, March 29, 2012 5:15 PM
> To: Karl Baum; arin-tech-discuss at arin.net
> 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 is associated with a customer ID rather than an Org ID), there's not enough data provided to connect an IP address range with a possibly-associated domain.
> 
> Regards,
> David
> 
> ---
> David R Huberman
> Principal Technical Analyst, ARIN
> 703-227-9866
> 
> 
> 
> 
> 
> 
> 
> On 3/29/12 4:21 PM, "Karl Baum" <karl.baum at gmail.com> wrote:
> 
> If i have an ip address, many times i can map that ip to email domains by jumping from ip to org to pocs.  The problem i run into is that many times the ip is not associated with an org but instead a customer.  For example:
> 
> https://gist.github.com/9429c3683719eff115fb
> 
> Is there a way to get to the pocs in this case?
> 
> thx!
> 
> -karl
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