List of Michigan area codes

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

• 231 - Northwestern Lower Michigan: Traverse City, Ludington, Muskegon, Petoskey and Cheboygan
• 248 - Northern Metro Detroit: All of Oakland County, Michigan, Northville, Michigan, and most of Northville Township, Michigan, overlays with area code 947
• 269 - Southwestern Michigan: Battle Creek, Benton Harbor, Allegan, Hastings, Kalamazoo, and St Joseph
• 313 - Detroit, Dearborn, Redford Township, and the Grosse Pointes
• 517 - Central Michigan: Lansing, Jackson, Charlotte, Coldwater, Howell, Deerfield, Addison
• 586 - Metro Detroit: All of Macomb County, Michigan
• 616 - Western Michigan: Grand Rapids, Holland, Greenville, Grand Haven, Zeeland, Ionia
• 734 - southern Metro Detroit and north Toledo suburbs (Michigan): Ann Arbor, Monroe, Wayne, and Ypsilanti
• 810 - Southern Flint/Tri-Cities: Port Huron, Flint, Flushing, Otisville, Davison, Brighton, Sandusky, and Lapeer
• 906 - All of the Upper Peninsula and Mackinac Island
• 989 - Northern Flint/Tri-Cities and Northeastern Lower Michigan: Alpena, Mt. Pleasant, Bay City, Saginaw, Midland, Owosso, Gaylord, and Bad Axe

Proposed Area Codes

• 947 - Troy, Oakland County, Pontiac, Southfield, Rochester and northwestern Detroit suburbs, overlays with area code 248
  • Approved by the Michigan Public Service Commission on April 17, 2001 [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 January 15, 2007.

• 679 - A future overlay to the combined area of the 313 and 734 areas. Not known to be in use as of 2007.
  • [3]. Retrieved on January 14, 2007.