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Phone Directory 303-660 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-660 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-6600###
303-6601###
303-6602###
303-6603###
303-6604###
303-6605###
303-6606###
303-6607###
303-6608###
303-6609###