Phone/Address/Zip/Area Code/Maps
InfoSpace.com
Access to Phone & Address Search, E-mail Search, Reverse Lookup, Yellow Pages. Link to 1-800-U.S. Search, a pay site.
Internet Oracle
A great multi-purpose site containing several databases and search options. (reverse look-up: phone, fax,
e-mail, address, street...)
Reverse Phone Directory
A reverse Residential, Business, Business Fax, and Toll free Directory.
Area Codes
Area codes and more. Additional directories include: Yellow/White, Fax, Toll-Free, E-mail, Hotel, Maps, Internet, Domain, World...etc.
Zip Codes
United States Postal Service: Provides zip codes, stamp info, rate calculator, and more.
Map Quest
Get maps on addresses, towns, zip codes in addition to door-to-door driving directions and travel guides.