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Phone Directory 720-554 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-554 Denver, CO Qwest Corporation Denver Landline 08/20/2000

Other Series For Prefixes

720-5540###
720-5541###
720-5542###
720-5543###
720-5544###
720-5545###
720-5546###
720-5547###
720-5548###
720-5549###