Area Codes
Lists area codes and corresponding time zone accessible from the U.S.
Area Codes and Country Guides
Complete listing of country, city and area phone codes.
Dial-a-Code.com
Country, area and city codes and IDD (international direct dialing) prefixes.
exUSSR Phone Codes
Includes all cities of Russia, Ukraine, Belorussia, Moldova, Lithuania, Latvia, Estonia, Kazakhstan, Georgia, Uzbekistan, Azerbaijan, Armenia, Kirgizia, and Tadjikistan.
Fone Finder
Cross reference by area code and exchange to determine the telephone company and place name.
NPA NXX Source
Complete coverage of all area codes and telephone exchange prefixes in the North American Numbering Plan.
UK Phone Information
Returns area information, map, BT charge information, and nearby exchange names for telephone numbers, access/short codes, or the name of a location.
Verizon - Area Code Lookup
Find the major locations in a certain area code by entering the area code, or find the area codes that are used in a certain state by entering the state name.
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