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Phone Directory 303-574 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 574-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-574 Denver, CO Qwest Corporation Denver Landline 10/15/1996

Other Series For Prefixes

303-5740###
303-5741###
303-5742###
303-5743###
303-5744###
303-5745###
303-5746###
303-5747###
303-5748###
303-5749###