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Phone Directory 740-399 Detail

State Major City Time Zone
Ohio Columbus Eastern

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Example: (740) 399-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
740-399 Mount Vernon, OH United Tel. Co. Of Ohio - Centurylink Knox Landline 01/25/1998

Other Series For Prefixes

740-3990###
740-3991###
740-3992###
740-3993###
740-3994###
740-3995###
740-3996###
740-3997###
740-3998###
740-3999###