Links to helpful resources:
As a consultant for myriad industries, I find the North American Classification System (NCAIS) as invaluable. This system categories North American (Canda, US & Mexico) businesses according to their economic area, including: largest business sector, sub-sector, industry group, NAICS industries & national industries.
Looking to incorporate your organization? Check out incfile.com
Search the Regional Internet Registry (RIR) ARIN (American Registry for Internet Numbers) to look up the Organization and POC for public IP addresses
Search WHOis.net to look up the Organization and POC for Public Domain names
There are several good websites to identify your current IP address, assigned by your ISP – one of which is WhatIsMyIP.net