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Phone Directory 303-474 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 474-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-474 Denver, CO Teleport Communications America Arapahoe Landline 04/01/1997

Other Series For Prefixes

303-4740###
303-4741###
303-4742###
303-4743###
303-4744###
303-4745###
303-4746###
303-4747###
303-4748###
303-4749###