PHONE/ZIP SEARCHES

• American Directory Assistance
  

  Registered free to search residential and business listings provided by American Business Information Inc.

• 555-1212 Directory
  

  Area codes and other phone directories lookup.

• USPS ZIP+4 Lookup
  

  Zip+4 codes lookup.

• USPS City/State and Zip Code Associations
  

  Look up Zip Codes and City/State associations.

• Area Code Splits
  

  This site provides telephone exchange details of area code splits. A free service provided by Rifton Enterprises.

• ZipFind Central
  

  Find zip codes within a radius, calculate the distance between zip codes, and zip code look up.

• Zip Codes by Counties LookUp
  

  Data from the 1990 Census by the US Census Bureau.

• AT&T 800 Directory
  

  Directory of toll-free numbers.

• Kapital-International Directories
  

  Links to phone/fax directories of countries around the world.