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Phone Directory 307-277 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-277 Casper, WY Cellco Partnership DBA Verizon Wireless Natrona Cell Number 08/21/2003

Other Series For Prefixes

307-2770###
307-2771###
307-2772###
307-2773###
307-2774###
307-2775###
307-2776###
307-2777###
307-2778###
307-2779###