Area codes in Knoxville, Tennessee

Knoxville, Tennessee uses area code 865. The main Knoxville area code is 865.

Area codes serving Knoxville

Phone numbers in Knoxville are written as ten digits — for example (865) 555-0190 — and fall in the Eastern Time zone.

All Tennessee area codes · Is a Knoxville call a scam?

Nearby cities

More cities in Tennessee

Frequently asked questions

What is the area code for Knoxville?

The main area code for Knoxville, Tennessee is 865.

How many area codes does Knoxville have?

Knoxville has 1 area code: 865.

How do you dial a Knoxville number?

Dial all 10 digits — the area code (865) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.

Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.