To browse all area codes, we have a list of all United States area codes by state and area codes by number. The area code list includes a printable copy that you can print and use for reference.

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.

The area codes locator shows the coverage area for each phone number area code. Area code locations are also listed by city next to the area code maps on this page.

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.

Find any United States phone number or browse by area code to lookup owner information and trustworthiness of any phone number.

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.

Simply hover your cursor over any region to see its area code, or click to explore more detailed information like cities served and prefixes. On mobile, pinch to zoom and swipe to move around the …

201 Jersey City 202 Washington 203 Bridgeport 205 Birmingham 206 Seattle 207 All 208 All 209 Modesto 210 San Antonio 212 NYC - Area 213 Los Angeles 214 Dallas 215 Philadelphia 216 …

The North American Numbering Plan (NANP) divides the territories of North America into Numbering Plan Areas (NPAs), which are encoded numerically with a three-digit telephone number prefix, …

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.