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Phone Directory 303-285 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 285-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-285 Denver, CO Icg Telecom Group Denver Landline 04/01/1997

Other Series For Prefixes

303-2850###
303-2851###
303-2852###
303-2853###
303-2854###
303-2855###
303-2856###
303-2857###
303-2858###
303-2859###