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Phone Directory 720-374 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-374 Denver, CO Qwest Corporation Denver Landline 06/13/2000

Other Series For Prefixes

720-3740###
720-3741###
720-3742###
720-3743###
720-3744###
720-3745###
720-3746###
720-3747###
720-3748###
720-3749###