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Phone Directory 303-375 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-375 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-3750###
303-3751###
303-3752###
303-3753###
303-3754###
303-3755###
303-3756###
303-3757###
303-3758###
303-3759###