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Phone Directory 303-940 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-940 Denver, CO Qwest Corporation Jefferson Landline 02/04/1994

Other Series For Prefixes

303-9400###
303-9401###
303-9402###
303-9403###
303-9404###
303-9405###
303-9406###
303-9407###
303-9408###
303-9409###