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Phone Directory 303-774 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
303-774 Longmont, CO Qwest Corporation Boulder Landline 07/01/1996

Other Series For Prefixes

303-7740###
303-7741###
303-7742###
303-7743###
303-7744###
303-7745###
303-7746###
303-7747###
303-7748###
303-7749###