Michigan phone numbers and area codes
Michigan has 12 area codes and 6,882 assigned prefixes.
Look at a prefix's carrier mix below, or look up a full number on the home page.
- Mobile carrier 32%
- Local phone company 27%
- Internet / business phone carrier 32%
- Paging service 4%
- Phone company 6%
Area codes in Michigan
| Code | Area | Prefixes here |
|---|---|---|
| 231 | Northwestern Michigan (Muskegon, Traverse City, Ludington, Petoskey) | 572 |
| 248 | Michigan (Oakland County) | 784 |
| 269 | Michigan (Battle Creek, Kalamazoo, Benton Harbor, Allegan, Hastings, St. Joseph, and most of southwestern Michigan) | 545 |
| 313 | Michigan (Dearborn, the Grosse Pointes, Detroit, and the latter's enclaves of Hamtramck and Highland Park) | 769 |
| 517 | Michigan (Lansing, Jackson, Charlotte, Deerfield, Addison, and most of south-central Michigan) | 616 |
| 586 | Michigan (Macomb County) | 546 |
| 616 | Michigan (Grand Rapids, Greenville, Holland, Ionia, Zeeland, and most of southwestern Michigan) | 545 |
| 734 | Michigan (Ann Arbor, Hell, Monroe, Plymouth, Romulus, Wayne, Ypsilanti, and the southwestern suburbs of Detroit) | 701 |
| 810 | Michigan (Port Huron, Flint, Lapeer, and the Michigan "Thumb") | 509 |
| 906 | Michigan (Upper Peninsula: Sault Ste. Marie, Escanaba, Houghton, Iron Mountain, Marquette, Menominee, etc.) | 360 |
| 947 | Michigan (Oakland County) | 211 |
| 989 | Michigan (Alpena, Mt. Pleasant, Bay City, Saginaw, Midland, Owosso, and a part of central Michigan) | 724 |
Biggest local calling areas
Numbers are assigned to rate centers. These have the most prefixes in Michigan (the number is how many).
Detroit770Grand Rapids274Mt. Clemens190Pontiac166Lansing164Flint139Ann Arbor133Warren132Southfield130Kalamazoo114Saginaw114Royal Oak95Birmingham79Battle Creek79Roseville73Muskegon68Troy67Farmington66Livonia64Jackson63Northville60Wayne60Clarkston58Traversecy53Ypsilanti52Ortonville48Holland46Lapeer46Plymouth44Port Huron44Center Line43West Bloomfld41Monroe40Wyandotte39Brighton39Marquette39Midland37Benton Harbor34Utica32Bay City29Rochester28Adrian27Howell27Trenton27Mtpleasant27Holly26Milfdwh Lake26Auburn Heights26Romulus24Grand Haven23Petoskey22Cadillac21Romeo21Big Rapids19Walled Lake19St. Joseph18Owosso18Niles17Greenville17Dexter16New Boston16Flat Rock16Belleville16Grand Blanc16Gaylord16Alma16Commerce15Drayton Pl15South Lyon15Hillsdale15Charlotte15Zeeland15Fenton15Iron Mt.15Alpena15Ludington14Hastings14Coldwater14Cheboygan13Three Rivers13
Carriers in Michigan
| Carrier | Type | Prefixes | Share |
|---|---|---|---|
| AT&T (local phone) | Local phone company | 1,417 | 21% |
| Verizon Wireless | Mobile carrier | 761 | 11% |
| AT&T Mobility | Mobile carrier | 706 | 10% |
| T-Mobile (including Sprint) | Mobile carrier | 564 | 8% |
| Onvoy | Internet / business phone carrier | 404 | 6% |
| Frontier | Local phone company | 303 | 4% |
| Level 3 (Lumen) | Internet / business phone carrier | 302 | 4% |
| Interactive Services Network | Internet / business phone carrier | 280 | 4% |
| MCImetro (Verizon Business) | Internet / business phone carrier | 234 | 3% |
| Windstream (PAETEC) | Internet / business phone carrier | 197 | 3% |
| Teleport Communications America | Internet / business phone carrier | 188 | 3% |
| American Messaging Services | Paging service | 164 | 2% |
Most prefixes are pooled: the 10,000 numbers in each are handed out in blocks of 1,000 to different carriers, and people can also take their numbers to another carrier. So the carrier shown is where the prefix started, not a guarantee about any one number. Source: NANPA central office code records, 2026-10-10.