To find information on a specific area code, use the area code lookup that makes it easy to find an area code by number and gives detailed information including city/state, timezone, and area code maps.

Find information on each area code, including coverage area, local dialing instructions, area code map and list of cities within each telephone area code. Other relevant telephone area codes information is …

Each NPA is identified by one or more numbering plan area codes (NPA codes, or area codes), consisting of three digits that are prefixed to each local telephone number having seven digits.

To faciltiate the millions of phone users, the United States of America is divided into regions known as Area Codes, corresponding to particular geographic telephone dialing areas.

The cities listed with each area code are the major cities for that area code; this originated as the city in which the switch computer for that area code is located, but is no longer the case.

Browse a complete list of area codes and look up area codes by city, state, or map. Reverse lookup areas codes by phone number and auto-detect your own area code by location.

Complete list of US area codes by state. Select a state, find cities from area codes and reverse area code lookup.

This Area Code page features a list of North American Telephone Area Codes, sorted by Area Code.

Area code lookup for US cities and an area codes locator to find the location of area codes. Complete area code list for the US and Canada

Browse our sites area and region codes by state and city to ensure you have the correct information for your calls. Each states page contains a list of the cities within that state and the numbers of that area.