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Phone Directory 303-374 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-374 Denver, CO Teleport Communications America Arapahoe Landline 04/01/1997

Other Series For Prefixes

303-3740###
303-3741###
303-3742###
303-3743###
303-3744###
303-3745###
303-3746###
303-3747###
303-3748###
303-3749###