Area Code Lookup
What Area Code Is Oak Ridge?
Area code 865 · Tennessee
Oak Ridge uses area code 865. It is located in Tennessee.
Area Code Serving Oak Ridge
Frequently Asked Questions
What area code is Oak Ridge?
Oak Ridge uses area code 865. It is located in Tennessee.
How do I call Oak Ridge from outside the US?
To call Oak Ridge from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-865-XXX-XXXX). The +1 is the country code for all NANPA countries.