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Phone Directory 303-866 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 866-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-866 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-8660###
303-8661###
303-8662###
303-8663###
303-8664###
303-8665###
303-8666###
303-8667###
303-8668###
303-8669###