Johnson City, Tennessee
Eastern Time Zone (UTC-5) · TN · —
About Area Codes in Johnson City, Tennessee
Johnson City, Tennessee is served by area code 423, which was established in 1995 as a geographic split from a larger area code region. The city falls within the Eastern time zone (UTC-5). All calls to and from Johnson City use the 423 area code prefix for local and long-distance dialing.
Other cities in area code 423
Frequently Asked Questions
What area code is Johnson City, Tennessee?
Johnson City, Tennessee uses area code 423.
What time zone is Johnson City in?
Johnson City is in the Eastern time zone (UTC-5).
Do I need to dial 10 digits when calling Johnson City?
Standard 7-digit dialing is used for local calls within Johnson City. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 423 created?
Area code 423 was established in 1995 as a geographic split from a larger area code region to serve the growing population.
What cities share area code 423 with Johnson City?
Other cities sharing area code 423 with Johnson City include Athens, Bristol, Chattanooga, Cleveland, Elizabethton, among others.
Also called Johnson City:
Johnson City, TN · Eastern Time Zone