Reference USA- Reference and research tool providing instant, real-time access to accurate, in-depth information on 24 million U.S. businesses and 235 million U.S. residents from NC LIVE.
Americom Area Decoder - Locate area codes or country codes.
Go Toll Free - The Internet 800 Directory
Switchboard - Search Yellow Pages and White Pages
Yellow Book Online - is a leading national yellow pages and online local search company that connects buyers with sellers.
Zip Codes - Nationwide zip codes - Find a ZIP Code by entering an address.