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Phone Directory 720-321 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (720) 321-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-321 Denver, CO Qwest Corporation Jefferson Landline 05/29/2008

Other Series For Prefixes

720-3210###
720-3211###
720-3212###
720-3213###
720-3214###
720-3215###
720-3216###
720-3217###
720-3218###
720-3219###