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Phone Directory 303-391 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 391-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-391 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-3910###
303-3911###
303-3912###
303-3913###
303-3914###
303-3915###
303-3916###
303-3917###
303-3918###
303-3919###