Area Code 423 Tennessee, USA

WhereCall is here to provide you with the most information on the area code 423, located in Tennessee, USA. This area code contains 639 prefixes and is not in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.

NPA Information
Area Code (NPA)423
LocationTennessee, USA
In Jeopardy?No
Is Assigned?Yes
In Service?Yes
In Service Date11 Sep 1995
Parent NPA615
Predominant Timezone(s)UTC-05:00 UTC-06:00
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