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Phone Directory 307-275 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 275-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-275 Cheyenne, WY Cellco Partnership DBA Verizon Wireless Laramie Landline 01/12/2005

Other Series For Prefixes

307-2750###
307-2751###
307-2752###
307-2753###
307-2754###
307-2755###
307-2756###
307-2757###
307-2758###
307-2759###