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Phone Directory 303-985 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 985-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-985 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-9850###
303-9851###
303-9852###
303-9853###
303-9854###
303-9855###
303-9856###
303-9857###
303-9858###
303-9859###