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Phone Directory 303-988 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 988-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-988 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-9880###
303-9881###
303-9882###
303-9883###
303-9884###
303-9885###
303-9886###
303-9887###
303-9888###
303-9889###