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Phone Directory 720-378 Detail

State Major City Time Zone
Colorado Denver Mountain

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Example: (720) 378-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
720-378 Longmont, CO New Cingular Wireless PCS Boulder Cell Number 01/19/2010

Other Series For Prefixes

720-3780###
720-3781###
720-3782###
720-3783###
720-3784###
720-3785###
720-3786###
720-3787###
720-3788###
720-3789###