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Michigan Area Codes
Michigan has 13 area codes in service: 231, 248, 269, 313, 517, 586, 616, 679, 734, 810, 906, 947 and 989.
Largest cities
| City | Area codes |
|---|---|
| Detroit | 313 |
| Grand Rapids | 616 |
| Warren | 586 |
| Sterling Heights | 586 |
| Ann Arbor | 734 |
| Lansing | 517 |
| Dearborn | 313 |
| Livonia | 734 |
| Troy | 248, 947 |
| Farmington Hills | 248, 947 |
| Westland | 734 |
| Flint | 810 |
All area codes in Michigan
| Code | Main cities | Overlay | In service since | Projected exhaust |
|---|---|---|---|---|
| 231 | Muskegon, Norton Shores, Traverse City, Cadillac | — | 1999 | 2068 |
| 248 | Troy, Farmington Hills, Rochester Hills, Southfield | 947 | 1997 | 2065 |
| 269 | Kalamazoo, Battle Creek, Portage, Niles | — | 2002 | 2050 |
| 313 | Detroit, Dearborn, Hamtramck, Highland Park | 679 | 1947 | 2091 |
| 517 | Lansing, Jackson, Holt, Waverly | — | 1947 | 2056 |
| 586 | Warren, Sterling Heights, St. Clair Shores, Roseville | — | 2001 | 2082 |
| 616 | Grand Rapids, Wyoming, Kentwood, Holland | — | 1947 | 2060 |
| 679 | Detroit | 313 | 2025 | 2091 |
| 734 | Ann Arbor, Livonia, Westland, Taylor | 679 | 1997 | 2044 |
| 810 | Flint, Burton, Port Huron, Fenton | — | 1993 | 2056 |
| 906 | Marquette, Sault Ste. Marie, Escanaba, Houghton | — | 1961 | 100+ |
| 947 | Troy, Farmington Hills, Rochester Hills, Southfield | 248 | 2002 | 2065 |
| 989 | East Lansing, Saginaw, Midland, Bay City | — | 2001 | 2038 |
6,881 prefixes are in use across Michigan. Exhaust years are NANPA's 2026 forecast.