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Phone Directory 720-457 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-457 Denver, CO Level 3 Communications Jefferson Landline 05/28/2008

Other Series For Prefixes

720-4570###
720-4571###
720-4572###
720-4573###
720-4574###
720-4575###
720-4576###
720-4577###
720-4578###
720-4579###