Get a local business phone number in Knoxville, IL

What area code is Knoxville, IL?

With 2,840 residents in the Census 2024 estimate, Knoxville sits in Knox County, Illinois. All 3 exchanges NANPA lists for its rate center are in area code 309. 309 is part of an overlay with 861, so a new local number in Knoxville may carry any of those codes depending on which have numbers available. Knoxville is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 309 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Who holds Knoxville phone exchanges

3 carriers hold the 3 exchanges assigned to Knoxville's rate center. Brightspeed of Illinois, LLC has the most, with 1. 3 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Local prefixes for Knoxville

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Knoxville. The earliest assignment date recorded in the file for these codes is 2008. 1 of the 3 were assigned in 2020 or later.

When Knoxville's exchanges were assigned

Assignment dates show when each block of Knoxville numbers was added to the local supply.

Rate centers and local calling 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.

Keeping an existing Knoxville number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 309 when you pick it.

Who does business near Knoxville

Knoxville is part of the Galesburg, IL micropolitan area, home to 48,716 people in 2024. County Business Patterns counted 968 business establishments in the Galesburg, IL micropolitan area in 2023, employing 14,242 people. The largest sectors by establishment count are retail trade (153), accommodation and food services (130), and health care and social assistance (129).

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.

If you already have a number in Knoxville, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Galesburg, IL micropolitan area, 15 users on RingCentral RingEX Core come to $450.00 a month and on Ooma Office Pro $374.25, at month-to-month list prices checked September 28, 2026. On Callata the same 15 people cost $299.00 a month, less than either per-seat plan.