YELLOWPAGES.com
YELLOWPAGES.COM is a leading Internet Yellow Pages and search directory.  Search for business and residential telephone numbers or do a reverse search using a telephone number.

Fone Finder
Under ‘Fone Finder,’ look up area codes, prefixes, or cities including international numbers!

Prefix Look-up by area code
Prefix Look-up by area code.

Reference USA
Search for companies in the United States by size, geographically, and by type of business. Also find Telephone numbers for those businesses.

Telephone Directories on the Web
National and International links to yellow pages, white pages, business directories, email addresses & fax listings.