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Phone Directory 303-684 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 684-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-684 Longmont, CO Qwest Corporation Boulder Landline 02/04/1994

Other Series For Prefixes

303-6840###
303-6841###
303-6842###
303-6843###
303-6844###
303-6845###
303-6846###
303-6847###
303-6848###
303-6849###