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Phone Directory 303-673 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 673-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-673 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-6730###
303-6731###
303-6732###
303-6733###
303-6734###
303-6735###
303-6736###
303-6737###
303-6738###
303-6739###