List of Michigan area codes

This is a list of telephone area codes in Michigan, United States.

231 - Northern Michigan: Traverse City, Ludington, Muskegon, Petoskey and northwestern Michigan
248 - Metro Detroit: Troy, Oakland County, Pontiac, Southfield, Rochester Hills and northwestern Detroit suburbs, overlays with area code 947
269 - Western Michigan: Battle Creek, Benton Harbor, Allegan, Hastings, Kalamazoo, and St Joseph
313 - Dearborn, Redford Township and the city of Detroit
517 - Central Michigan: Lansing, Jackson, Charlotte, Coldwater, Howell, Deerfield, Addison
586 - All of Macomb County, Michigan
616 - Western Michigan: Grand Rapids, Holland, Greenville, Grand Haven, Zeeland, Ionia
734 - Metro Detroit: Ann Arbor, Monroe, Wayne, and Ypsilanti
810 - Southern Flint/Tri-Cities: Port Huron, Flint, Flushing, Brighton, Sandusky, and Lapeer
906 - All of the Upper Peninsula and Mackinac Island
989 - Northern Flint/Tri-Cities and Northern Michigan: Alpena, Mt. Pleasant, Bay City, Saginaw, Midland, Owosso, Gaylord, and Bad Axe

[edit] Proposed Area Codes

947 - Troy, Oakland County, Pontiac, Southfield, Rochester Hills and northwestern Detroit suburbs, overlays with area code 248
- Approved by the Michigan Public Service Commission on 2001-04-17 [1] for future use, when numbers in the existing 248 area are exhausted. Not known to be in use as of 2007.
- While this code was proposed as early as 2001, as of January 2007, the North American Numbering Plan Administrator does not rate the 248 area as being in "jeopardy" of exhausting its numbers. [2], retrieved 2007-01-15.