Get a local business phone number in Knoxville, TN

Area codes in Knoxville

Knoxville, in Knox County, Tennessee, had a Census-estimated population of 198,722 in July 2024. All 276 exchanges NANPA lists for its rate center are in area code 865. Knoxville is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 865 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Knoxville

38 carriers hold the 276 exchanges assigned to Knoxville's rate center. Bellsouth Telecomm INC d/b/a South Central Bell Tel has the most, with 67. 195 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Knoxville can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Knoxville

These are the central office codes NANPA records for Knoxville. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2001. 26 of the 276 were assigned in 2020 or later.

When Knoxville's exchanges were assigned

The table groups Knoxville's exchanges by the decade NANPA recorded them as assigned.

How local numbers work in Knoxville

What a caller sees as "local" is the area code plus prefix. In Knoxville, those come from the KNOXVILLE rate center, as recorded by NANPA.

New local numbers are drawn from carrier inventory, so the exact 865 numbers available change over time; porting an existing number is free.

Who does business near Knoxville

Knoxville is part of the Knoxville, TN metro area, home to 958,000 people in 2024. County Business Patterns counted 19,652 business establishments in the Knoxville, TN metro area in 2023, employing 385,052 people. The largest sectors by establishment count are retail trade (2,994), health care and social assistance (2,352), and other services (except public administration) (2,154).

Setting up a Knoxville business line

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

Porting a number you already use in Knoxville is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Knoxville, TN metro area, 20 users on RingCentral RingEX Core come to $600.00 a month and on Ooma Office Pro $499.00, at month-to-month list prices checked September 28, 2026. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.