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Phone Directory 720-857 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (720) 857-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-857 Aurora, CO Qwest Corporation Arapahoe Landline 08/20/2000

Other Series For Prefixes

720-8570###
720-8571###
720-8572###
720-8573###
720-8574###
720-8575###
720-8576###
720-8577###
720-8578###
720-8579###