865 Area Code — Knoxville, Tennessee

Area code 865 serves Knoxville, TN.

Most looked-up 865 numbers

• 865-630-4266
• 865-327-1558
• 865-321-3438
• 865-263-2387
• 865-406-3976

Phone prefixes in 865

• 865-630
• 865-327
• 865-321
• 865-263
• 865-406

Carriers serving 865

• Telnyx, LLC (1 numbers)
• Bandwidth (1 numbers)
• At&t (1 numbers)
• Vonage America, LLC (1 numbers)
• Powertel Nashville Licenses, I (1 numbers)

Frequently asked questions

Where is area code 865?

Area code 865 serves Knoxville, TN.

What prefixes are in area code 865?

Phone2.io tracks 5 phone prefixes in area code 865, with carrier and spam-report data on individual numbers.

More about area code 865

Area code 865 overview, history, and local numbers · Get a TN phone number

Last updated: May 25, 2026