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Phone Directory 303-864 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 864-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-864 Denver, CO Qwest Corporation Denver Landline 04/01/1997

Other Series For Prefixes

303-8640###
303-8641###
303-8642###
303-8643###
303-8644###
303-8645###
303-8646###
303-8647###
303-8648###
303-8649###