231 Area Code Phone Numbers

Where is Area Code 231?

The 231 area code is assigned to Michigan. Area code 231 is one of 325 three-digit telephone area codes in the USA. There are about 352,289 unique phone numbers and 634,556 individuals near the cities of Muskegon,Norton Shores,Traverse City.

Major City:Muskegon
Current Time: 11:38pm

Major Cities in 231 Area Code

  • Muskegon
  • Norton Shores
  • Traverse City
  • Muskegon Heights
  • Big Rapids
  • Cadillac
  • Ludington
  • Manistee
Area Code 231 Map
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