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Global Resource Directory
Sponsored by the Michigan State University, contains thousands of international business-trade-related resources.
Global Supplier Directory by Thomas Global Register
Find industrial product and company information from around the world.
Financial data and personnel information on both private and public companies.
Internet 800 Search
Lists all toll-free telephone numbers by business category, company name, state, and 800 number.
Kompass Business Directory
Site for globalized business, covering more than 5 million companies.
Telephone & Reverse Directories
This free site lists residential and business phone numbers, including a reverse lookup by phone number.
Includes international calling codes, phone books and time zone information.
Mexican Postal Codes
Servicio Postal Mexicano. In Spanish.
British Telecom provides this telephone directory for people and businesses in the United Kingdom.
Zip & Postal Codes
Canadian Postal Codes
Index to the postal code for street addresses, rural addresses and post office boxes.
Royal Mail Postcodes
The Royal Mail’s guide for locating the Postcodes for any address in the United Kingdom.
World Zip / Postal Codes
World Zip / Postal Code Lookup
ZIP Code Lookup and Address Information
U.S. Postal Service guide to zip codes for any address, city or state.