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Phone Directory 303-331 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 331-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-331 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-3310###
303-3311###
303-3312###
303-3313###
303-3314###
303-3315###
303-3316###
303-3317###
303-3318###
303-3319###