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Phone Directory 231-399 Detail

State Major City Time Zone
Michigan Muskegon Eastern

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Example: (231) 399-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
231-399 Frankfort, MI Acd Telecom Benzie Landline 01/19/2005

Other Series For Prefixes

231-3990###
231-3991###
231-3992###
231-3993###
231-3994###
231-3995###
231-3996###
231-3997###
231-3998###
231-3999###