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Phone Directory 303-379 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-379 Denver, CO Teleport Communications America Arapahoe Landline 04/01/1997

Other Series For Prefixes

303-3790###
303-3791###
303-3792###
303-3793###
303-3794###
303-3795###
303-3796###
303-3797###
303-3798###
303-3799###