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Phone Directory 720-420 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-420 Denver, CO Level 3 Communications Denver Landline 05/26/2010

Other Series For Prefixes

720-4200###
720-4201###
720-4202###
720-4203###
720-4204###
720-4205###
720-4206###
720-4207###
720-4208###
720-4209###