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Phone Directory 303-315 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 315-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-315 Denver, CO Qwest Corporation Denver Landline 01/10/1996

Other Series For Prefixes

303-3150###
303-3151###
303-3152###
303-3153###
303-3154###
303-3155###
303-3156###
303-3157###
303-3158###
303-3159###