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Phone Directory 303-449 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 449-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-449 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-4490###
303-4491###
303-4492###
303-4493###
303-4494###
303-4495###
303-4496###
303-4497###
303-4498###
303-4499###