Search a Michigan number to reveal the owner's name, carrier, and location.
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| State: | Michigan (MI) |
| Area Codes: | 12 |
| Timezone: | Eastern (EDT) |
| Current Time: | 9:46 PM |
Michigan (MI) uses 12 telephone area codes to serve its residents and businesses. With an estimated population of 10,403,850, Michigan is one of the most heavily coded states in the North American Numbering Plan (NANP). The state is primarily in the Eastern Time Zone (EDT). The current local time in Michigan is 9:46 PM.
The largest cities in Michigan include Detroit (pop. 3,506,126), Grand Rapids (pop. 609,314), Flint (pop. 332,190), Lansing (pop. 324,286) and Ann Arbor (pop. 322,267) . Michigan has 83 counties spread across its territory. Each area code in MI covers a geographic region of the state, with some areas using overlay codes that share the same geographic territory as an existing area code.
When calling a Michigan phone number from outside the area code, you must dial the full 10-digit number: the 3-digit area code followed by the 7-digit local number. Many parts of Michigan now require 10-digit dialing even for local calls due to overlay area codes and the nationwide 988 Suicide & Crisis Lifeline implementation.
The table below lists every active area code in Michigan, along with the major city served and other cities covered by each code.
| Area Code | Major City | Other Cities |
|---|---|---|
| 231 | Grand Rapids | Muskegon, Wyoming, Benton Harbor, Traverse City, Norton Shores, Big Rapids, Cadillac, Whitehall and more |
| 248 | Detroit | Flint, Ann Arbor, South Lyon, Livonia, Troy, Farmington Hills, Southfield, Pontiac and more |
| 269 | Grand Rapids | Kalamazoo, Troy, Battle Creek, Wyoming, Southfield, Benton Harbor, Traverse City, Portage and more |
| 313 | Detroit | Flint, Ann Arbor, Dearborn, Livonia, Troy, Farmington Hills, Southfield, Taylor and more |
| 517 | Detroit | Grand Rapids, Flint, Lansing, Livonia, Jackson, Troy, Wyoming, Southfield and more |
| 586 | Detroit | Flint, Ann Arbor, Warren, Sterling Heights, Livonia, Troy, Southfield, Pontiac and more |
| 616 | Grand Rapids | Muskegon, Holland, Troy, Wyoming, Southfield, Traverse City, Portage, Allendale and more |
| 734 | Detroit | Flint, Ann Arbor, Livonia, Troy, Farmington Hills, Southfield, Taylor, Pontiac and more |
| 810 | Detroit | Flint, Ann Arbor, Livonia, Troy, Port Huron, Southfield, Pontiac, Burton and more |
| 906 | Marquette | Escanaba, Iron Mountain, Ishpeming, Menominee, Ironwood, Gladstone, Negaunee, Hancock and more |
| 947 | Detroit | Ann Arbor, Livonia, Southfield, Pontiac, Birmingham, Wayne, West Bloomfield |
| 989 | Saginaw | Troy, Southfield, Bay City, Midland, Mount Pleasant, Owosso, Alma, Alpena and more |
These are the largest cities in Michigan by population, along with their primary area codes and counties.
| City | Population | County |
|---|---|---|
| Detroit | 3,506,126 | Wayne County |
| Grand Rapids | 609,314 | Kent County |
| Flint | 332,190 | Genesee County |
| Lansing | 324,286 | Ingham County |
| Ann Arbor | 322,267 | Washtenaw County |
| Kalamazoo | 215,193 | Kalamazoo County |
| Muskegon | 153,565 | Muskegon County |
| Warren | 133,943 | Macomb County |
| Sterling Heights | 132,438 | Macomb County |
| South Lyon | 124,694 | Oakland County |
