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Phone Directory 303-450 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-450 Denver, CO Qwest Corporation Adams Landline 02/04/1994

Other Series For Prefixes

303-4500###
303-4501###
303-4502###
303-4503###
303-4504###
303-4505###
303-4506###
303-4507###
303-4508###
303-4509###