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Phone Directory 303-856 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 856-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-856 Englewood, CO Icg Telecom Group Arapahoe Landline 04/01/1997

Other Series For Prefixes

303-8560###
303-8561###
303-8562###
303-8563###
303-8564###
303-8565###
303-8566###
303-8567###
303-8568###
303-8569###