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Phone Directory 303-623 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 623-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-623 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-6230###
303-6231###
303-6232###
303-6233###
303-6234###
303-6235###
303-6236###
303-6237###
303-6238###
303-6239###