Look up US postal zip codes, telephone area codes, and associated city names.

Search for US Area Codes, Zip Codes, and Cities. Zip Multiple cities are handled. Over 80,000 entries. Crossreferences to State/County.

A project to collect payphone numbers worldwide. 10,000 + numbers from North America and Europe. Call one when you're bored. Updated, unlike other payphone sites.

Free online phone number directory including white pages and yellow pages directories, reverse phone lookup, reverse address lookup, area code lookup, area code maps and zip code finder. Results include maps and driving directions. Truck Driving Job

Forward Loop Software LLC provides software for Palm OS and Windows

International Numbering Plans, A collection of all international numbering plans in the world. Slab rate of TDS +FORMAT