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Phone Directory 307-221 Detail

State Major City Time Zone
Wyoming Casper Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
307-221 Cheyenne, WY Sprint Spectrum L.p. Laramie Cell Number 06/13/2000

Other Series For Prefixes

307-2210###
307-2211###
307-2212###
307-2213###
307-2214###
307-2215###
307-2216###
307-2217###
307-2218###
307-2219###