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Phone Directory 307-278 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 278-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-278 Buffalo, WY Level 3 Communications Johnson Landline 05/19/2004

Other Series For Prefixes

307-2780###
307-2781###
307-2782###
307-2783###
307-2784###
307-2785###
307-2786###
307-2787###
307-2788###
307-2789###