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Phone Directory 303-777 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-777 Denver, CO Qwest Corporation Denver Landline 02/04/1994

Other Series For Prefixes

303-7770###
303-7771###
303-7772###
303-7773###
303-7774###
303-7775###
303-7776###
303-7777###
303-7778###
303-7779###