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Phone Directory 303-664 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 664-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-664 Denver, CO Qwest Corporation Jefferson Landline 07/01/1996

Other Series For Prefixes

303-6640###
303-6641###
303-6642###
303-6643###
303-6644###
303-6645###
303-6646###
303-6647###
303-6648###
303-6649###