Area Codes
Directory of U.S. area codes searchable by zip code, city, county and area code.
ATT Directories
Directory to find phone numbers, addresses, maps and directions for businesses and people in the U.S. Includes country and city codes area codes.
Switchboard Telephone Directories
Directory for over 90 million residential and 10 million commercial listings. Allows you to customize your own listing.
U.S. Blue Pages
Federal, state, and local government office listings for all 50 states and the District of Columbia as well as hundreds of cities and metropolitan areas throughout the U.S.
Country Codes & International Area Codes
Provides information on how to dial internationally including telephone country codes and international area codes.
International White and Yellow Pages
Residential and business phone and fax numbers for over 90 countries around the world.
International Postal Codes
Postal pages for over 40 countries including Canada, France, Germany, India, Japan, and Mexico.
United States Postal Service
5 and 9-digit zip codes for virtually all U.S. addresses, U.S. and International mailing rates, nifty stamp images, and more.
