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Phone Directory 303-389 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 389-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-389 Denver, CO Qwest Corporation Denver Landline 10/15/1996

Other Series For Prefixes

303-3890###
303-3891###
303-3892###
303-3893###
303-3894###
303-3895###
303-3896###
303-3897###
303-3898###
303-3899###