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Phone Directory 303-388 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 388-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-388 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-3880###
303-3881###
303-3882###
303-3883###
303-3884###
303-3885###
303-3886###
303-3887###
303-3888###
303-3889###