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