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Phone Directory 231-378 Detail

State Major City Time Zone
Michigan Muskegon Eastern

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Example: (231) 378-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
231-378 Thompsonville, MI Ace Telephone Co. Of Michigan Benzie Landline 07/22/1999

Other Series For Prefixes

231-3780###
231-3781###
231-3782###
231-3783###
231-3784###
231-3785###
231-3786###
231-3787###
231-3788###
231-3789###