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Phone Directory 307-637 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Example: (307) 637-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-637 Cheyenne, WY Qwest Corporation Laramie Landline 02/04/1994

Other Series For Prefixes

307-6370###
307-6371###
307-6372###
307-6373###
307-6374###
307-6375###
307-6376###
307-6377###
307-6378###
307-6379###