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Phone Directory 307-577 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-577 Casper, WY Qwest Corporation Carbon Landline 02/04/1994

Other Series For Prefixes

307-5770###
307-5771###
307-5772###
307-5773###
307-5774###
307-5775###
307-5776###
307-5777###
307-5778###
307-5779###