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Phone Directory 720-851 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-851 Denver, CO Qwest Corporation Jefferson Landline 05/10/1999

Other Series For Prefixes

720-8510###
720-8511###
720-8512###
720-8513###
720-8514###
720-8515###
720-8516###
720-8517###
720-8518###
720-8519###