Area code 423

Area code 423 is a geographic code in the North American Numbering Plan. This region spans more than one time zone.

Other area codes in Tennessee: 615, 629, 731, 865, 901, 931.

Is a call from 423 local?

Not necessarily. People keep their numbers when they move, internet phone numbers can be used anywhere, and robocallers often spoof local-looking numbers. Learn about spoofing.