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Phone Directory 307-477 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 477-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-477 Cheyenne, WY Union Telephone Company Laramie Cell Number 11/20/1998

Other Series For Prefixes

307-4770###
307-4771###
307-4772###
307-4773###
307-4774###
307-4775###
307-4776###
307-4777###
307-4778###
307-4779###