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Phone Directory 303-524 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 524-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-524 Denver, CO Teleport Communications America Arapahoe Landline 04/01/1997

Other Series For Prefixes

303-5240###
303-5241###
303-5242###
303-5243###
303-5244###
303-5245###
303-5246###
303-5247###
303-5248###
303-5249###