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Phone Directory 303-974 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 974-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-974 Denver, CO Global Crossing Local Services-co Jefferson Landline 08/14/1998

Other Series For Prefixes

303-9740###
303-9741###
303-9742###
303-9743###
303-9744###
303-9745###
303-9746###
303-9747###
303-9748###
303-9749###