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Phone Directory 307-312 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 312-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-312 Beulah, WY Bandwidth.com Clec Crook Landline 06/19/2012

Other Series For Prefixes

307-3120###
307-3121###
307-3122###
307-3123###
307-3124###
307-3125###
307-3126###
307-3127###
307-3128###
307-3129###