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Phone Directory 303-939 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 939-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-939 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-9390###
303-9391###
303-9392###
303-9393###
303-9394###
303-9395###
303-9396###
303-9397###
303-9398###
303-9399###