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Phone Directory 720-544 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-544 Denver, CO Qwest Corporation Jefferson Landline 10/31/2000

Other Series For Prefixes

720-5440###
720-5441###
720-5442###
720-5443###
720-5444###
720-5445###
720-5446###
720-5447###
720-5448###
720-5449###