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Phone Directory 303-383 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-383 Denver, CO Qwest Corporation Denver Landline 04/01/1997

Other Series For Prefixes

303-3830###
303-3831###
303-3832###
303-3833###
303-3834###
303-3835###
303-3836###
303-3837###
303-3838###
303-3839###