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Phone Directory 307-378 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 378-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-378 Rock River, WY Union Telephone Co. Albany Landline 02/04/1994

Other Series For Prefixes

307-3780###
307-3781###
307-3782###
307-3783###
307-3784###
307-3785###
307-3786###
307-3787###
307-3788###
307-3789###