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Phone Directory 303-380 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-380 Denver, CO Qwest Corporation Denver Landline 04/01/1997

Other Series For Prefixes

303-3800###
303-3801###
303-3802###
303-3803###
303-3804###
303-3805###
303-3806###
303-3807###
303-3808###
303-3809###