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Phone Directory 303-556 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 556-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-556 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-5560###
303-5561###
303-5562###
303-5563###
303-5564###
303-5565###
303-5566###
303-5567###
303-5568###
303-5569###