Area Code 313

Area Code 313 History:

01/01/1947
Area code 313 was officially put into service. In 1993 area code 313 was split to form area code 810. In 1997 area code 313 was split to form area code 734.

The Michigan Public Service Commission has approved area code 679 as an all services overlay of area code 313 with an in service date of 11/07/2025. Area code 679 will only become available to subscribers when all assignable central office codes in area code 313 area code are assigned. Ten digit dialing (area code + seven digit number) will be necessary in the 313/679 overlay because different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.

Counties in Michigan within area code 313 include:

Wayne County.

Major cities or places in Michigan within area code 313 include:

Area code 313 serves the city of Detroit and the larger cities and communities of Dearborn, Dearborn Heights, Detroit, Hamtramck, Inkster, Lincoln Park, Redford and Taylor.