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Phone Directory 307-540 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-540 Jeffrey City, WY Union Telephone Company Fremont Cell Number 02/11/1995

Other Series For Prefixes

307-5400###
307-5401###
307-5402###
307-5403###
307-5404###
307-5405###
307-5406###
307-5407###
307-5408###
307-5409###