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Phone Directory 303-966 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 966-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-966 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-9660###
303-9661###
303-9662###
303-9663###
303-9664###
303-9665###
303-9666###
303-9667###
303-9668###
303-9669###