Oak Ridge, Tennessee
Eastern Time Zone (UTC-5) · TN · —
About Area Codes in Oak Ridge, Tennessee
Oak Ridge, Tennessee is served by area code 865, which was established in 1999 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 Oak Ridge use the 865 area code prefix for local and long-distance dialing.
Other cities in area code 865
Frequently Asked Questions
What area code is Oak Ridge, Tennessee?
Oak Ridge, Tennessee uses area code 865.
What time zone is Oak Ridge in?
Oak Ridge is in the Eastern time zone (UTC-5).
Do I need to dial 10 digits when calling Oak Ridge?
Standard 7-digit dialing is used for local calls within Oak Ridge. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 865 created?
Area code 865 was established in 1999 as a geographic split from a larger area code region to serve the growing population.
What cities share area code 865 with Oak Ridge?
Other cities sharing area code 865 with Oak Ridge include Alcoa, Clinton, Farragut, Gatlinburg, Knoxville, among others.
Oak Ridge, TN · Eastern Time Zone