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Phone Directory 720-356 Detail

State Major City Time Zone
Colorado Denver Mountain

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-356 Denver, CO AT&T Local Denver Landline 02/27/1999

Other Series For Prefixes

720-3560###
720-3561###
720-3562###
720-3563###
720-3564###
720-3565###
720-3566###
720-3567###
720-3568###
720-3569###