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Phone Directory 303-979 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-979 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-9790###
303-9791###
303-9792###
303-9793###
303-9794###
303-9795###
303-9796###
303-9797###
303-9798###
303-9799###