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Phone Directory 303-404 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (303) 404-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-404 Denver, CO Qwest Corporation Adams Landline 04/15/1996

Other Series For Prefixes

303-4040###
303-4041###
303-4042###
303-4043###
303-4044###
303-4045###
303-4046###
303-4047###
303-4048###
303-4049###