Telephone & Fax
Business yellow pages searchable by name or category; maps available of locations.
This website provides calling code instructions to places all around the world.
The Gethuman Database of 500 companies includes customer service telephone numbers, specific instructions for reaching a human being at each company, and quality of service grades.
Business, government and residential listings; includes section for email addresses and fax numbers.
Fax and phone directories for selected countries.
ReferenceUSA is an Internet based service from the Library Division of InfoUSA. Contains detailed information on more than 14 million U.S. businesses; 120 million U.S. residents and more.
Search for people and businesses. This site also contains reverse look-up by phone.
White pages, yellow pages and fax directories from around the world.
This web sites finds postal codes for various countries.
This web sites finds zip codes located throughout Mexico.