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Area codes for all of the United States, Canada and the Caribbean with information about overlays and splits. Look up by state or area code.

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AreaCode.org lists US and Canada telephone area codes for reverse area code lookup. Find area code list, area code maps, and cities within an area code.

Locator for telephone area codes in the USA, Canada and some Caribbean Islands; lookup cities in an area code and viceversa - detailed information on all codes including map and time zone/curent time

Area code lookup for all US cities or use the area codes locator to find which city a phone area code belongs to.

Lists U.S. and Canada area codes, the state the area code belongs to, and the time zone of all area codes starting with 2.

Time zones, time differences, distance calculator, US time zones with area codes and other air travel tools and calculations.

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American Computer Resources, Inc. International country code directory.

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Lookup US area codes, international country calling codes and world city

Country Codes for International long distance calling made easy! Check all Country Calling Codes and Phone Area Codes FREE. Every phone country code and area code is updated. Call from one area to another in seconds. Fast and Free!