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Phone Directory 303-443 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 443-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-443 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-4430###
303-4431###
303-4432###
303-4433###
303-4434###
303-4435###
303-4436###
303-4437###
303-4438###
303-4439###