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Phone Directory 423-378 Detail

State Major City Time Zone
Tennessee Chattanooga Eastern / Central

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Example: (423) 378-5555 or 2012145555

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Area Code Prefixes

Prefix Primary City Company County Usage Introduced
423-378 Kingsport, TN United Telephone-southeast-tn DBA Centurylink Sullivan Landline 01/10/1996

Other Series For Prefixes

423-3780###
423-3781###
423-3782###
423-3783###
423-3784###
423-3785###
423-3786###
423-3787###
423-3788###
423-3789###