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Phone Directory 303-457 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 457-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-457 Denver, CO Qwest Corporation Adams Landline 02/04/1994

Other Series For Prefixes

303-4570###
303-4571###
303-4572###
303-4573###
303-4574###
303-4575###
303-4576###
303-4577###
303-4578###
303-4579###