Area Code 231

Area Code 231 information.

Area Code 231 Details
Country	United States
State/Province	Michigan
Major City	Muskegon
Time Zone	Eastern (UTC-05:00)

Area Code 231 Prefixes

Prefix	County	Phone Type	Status
231-529	Emmet	Landline	Active
231-532	Kalkaska	Cell Number	Active
231-533	Antrim	Landline	Active
231-534	Grand Traverse	Landline	Active
231-535	Charlevoix	Landline	Active
231-536	Charlevoix	Landline	Active
231-537	Emmet	Landline	Active
231-538	Newaygo	Landline	Active
231-539	Emmet	Landline	Active
231-543	Osceola	Landline	Active
231-544	Antrim	Landline	Active
231-546	Antrim	Landline	Active
231-547	Charlevoix	Landline	Active
231-548	Emmet	Landline	Active
231-549	Charlevoix	Landline	Active
231-555	Used in movie	Cell Number	Active
231-556	Charlevoix	Landline	Active
231-557	Muskegon	Cell Number	Active
231-559	Missaukee	Landline	Active
231-563	Muskegon	Landline	Active

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