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Phone Directory 231-821 Detail

State Major City Time Zone
Michigan Muskegon Eastern

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Example: (231) 821-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
231-821 Holton, MI Frontier North Muskegon Landline 07/22/1999

Other Series For Prefixes

231-8210###
231-8211###
231-8212###
231-8213###
231-8214###
231-8215###
231-8216###
231-8217###
231-8218###
231-8219###