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Phone Directory 303-347 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-347 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-3470###
303-3471###
303-3472###
303-3473###
303-3474###
303-3475###
303-3476###
303-3477###
303-3478###
303-3479###