Michigan Area Codes: Complete List With Cities Served

Michigan is served by 12 area codes. Growth in phone lines has pushed the state to add new codes over the years, often as overlays on existing regions.

Michigan area code list

Area codeMain places served
231Muskegon, Traverse City, Fremont and Harrison
248Troy, Southfield, Farmington and Bloomfield Hills
269Kalamazoo, Battle Creek, Portage and Benton Harbor
313Detroit, Dearborn, Livonia and Warren
517Lansing, East Lansing, Jackson and Howell
586Warren, Sterling Heights, Utica and Clinton Township
616Grand Rapids, Ada, Holland and Rockford
734Ann Arbor, Livonia, Belleville and Monroe
810Flint, Burton, Port Huron and Brighton
906Kincheloe, Barbeau, Brimley and Cedarville
947Southfield, Troy, Farmington and Detroit
989Saginaw, Midland, Bay City and Mount Pleasant

Place names come from ZIP code records linked to each area code, so they show where a code is most common rather than exact boundaries.

Area codes by major city

CityArea codes
Detroit248, 313, 586, 734, 947
Grand Rapids616
Lansing517
Flint810
Kalamazoo269
Saginaw989
Ann Arbor248, 734, 947
Muskegon231, 616
Warren248, 313, 586, 947
Battle Creek269
Dearborn313
Farmington248, 947
Southfield248, 947
Sterling Heights248, 586, 947
Traverse City231

How to format a Michigan phone number

US numbers have ten digits: the area code, a three-digit exchange and a four-digit line number. A Michigan number is written as (231) 555-0123 for display, or +12315550123 in E.164 format for storage.

Safe numbers for testing

The range 555-0100 to 555-0199 is reserved for fictional use in every area code. Our generator combines these with real local area codes, so test data looks right without reaching a real person.

Why overlays matter for your forms

With overlays, you cannot guess a city from its area code alone, and people who move keep their numbers. Use area codes for display and formatting, not for location checks.

Create realistic Michigan addresses for testing, with real cities, counties and ZIP codes.

Generate Michigan addresses