Area code 231

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Map of area code 231 in Michigan.

231 is a North American telephone area code in the U.S. state of Michigan. It was created in June 1999 as a split from area code 616. 231 is essentially the northern half of the old 616 area code. 616 previously covered the entire western half of the state of Michigan, extending west from the north-south line aligned with the Mackinac Bridge.

The new 231's southern boundary closely follows the county lines between Muskegon County, Ottawa County, Kent County, and Montcalm County.

Among the Michigan cities it serves are Big Rapids, Cadillac, Grant, Kalkaska, Ludington, Manistee, Muskegon, Petoskey, and Traverse City.

External links[edit]

Michigan area codes: 231, 248, 269, 313, 517, 586, 616, 734, 810, 906, 947, 989
North: 906
West: Lake Michigan area code 231 East: 989
South: 616