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Phone Directory 307-771 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 771-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-771 Cheyenne, WY Qwest Corporation Laramie Landline 02/04/1994

Other Series For Prefixes

307-7710###
307-7711###
307-7712###
307-7713###
307-7714###
307-7715###
307-7716###
307-7717###
307-7718###
307-7719###