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Phone Directory 307-851 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 851-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-851 Riverton, WY Cellco Partnership DBA Verizon Wireless Fremont Cell Number 01/10/1996

Other Series For Prefixes

307-8510###
307-8511###
307-8512###
307-8513###
307-8514###
307-8515###
307-8516###
307-8517###
307-8518###
307-8519###