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Phone Directory 303-583 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-583 Denver, CO Teleport Communications America Arapahoe Landline 01/11/1997

Other Series For Prefixes

303-5830###
303-5831###
303-5832###
303-5833###
303-5834###
303-5835###
303-5836###
303-5837###
303-5838###
303-5839###