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Phone Directory 303-447 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 447-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-447 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-4470###
303-4471###
303-4472###
303-4473###
303-4474###
303-4475###
303-4476###
303-4477###
303-4478###
303-4479###