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Phone Directory 303-621 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 621-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-621 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-6210###
303-6211###
303-6212###
303-6213###
303-6214###
303-6215###
303-6216###
303-6217###
303-6218###
303-6219###