Glen Lipka wrote on 1/17/2008 8:12 PM:
I need to find a commercial company that provides a Reverse IP Lookup as a
web service.
So I would pass: 63.82.2.35 and it would spit back ideally: Marketo,
Address, City, State, Zip etc.
While an IP can give you a clue as to where the user is located, proxies can
thwart this by allowing a user in one country to appear to be coming from
another (anonymizers, company VPNs, etc). With that caveat, the service I've
heard about the most is GeoIP:
<http://www.maxmind.com/app/web_services>
Looking at it now, it appears they offer a Proxy detector service as well.
They also offer a free, less accurate service as well:
<http://www.maxmind.com/app/geolitecity>
- Bil
