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Phone Directory 303-670 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-670 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-6700###
303-6701###
303-6702###
303-6703###
303-6704###
303-6705###
303-6706###
303-6707###
303-6708###
303-6709###