CallataGuidesBusiness phone system for advertising agencies in Knoxville, TN
Advertising agencies in the Knoxville, TN metro area: 25 establishments in 2023, the local area codes, and what phone service costs a 24-person team.
- Establishments
- 25CBP 2023
- Employees
- 602mid-March 2023
- Per 100k residents
- 2.6U.S. 4.6
- Rank
- 91st of 351areas by count
The advertising agency market in Knoxville, TN
County Business Patterns counts 25 advertising agencies (NAICS 541810, Advertising Agencies) in the Knoxville, TN metro area for 2023. Together they reported 602 mid-March employees and $73.7 million of payroll for the year. That ranks 91st of the 351 metro and micropolitan areas where Census published a count for this industry.
With 958,000 residents in the Census 2024 estimate, that is 2.6 advertising agencies per 100,000 people, 42.8% below the national rate of 4.6. Establishments average 24.1 employees, 86.3% above the U.S. average of 12.9. Payroll per employee comes to $122,480, 14.6% above the national $106,841.
| Measure | Knoxville, TN | Tennessee | United States |
|---|---|---|---|
| Establishments | 25 | 203 | 15,512 |
| Mid-March employees | 602 (moderate noise) | 2,138 | 200,465 |
| Annual payroll | $73,733,000 (moderate noise) | $199,971,000 | $21,417,972,000 |
| Employees per establishment | 24.1 | 10.5 | 12.9 |
| Payroll per employee | $122,480 | $93,532 | $106,841 |
| Establishments per 100,000 residents | 2.6 | 2.8 | 4.6 |
Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.
Establishment size: advertising agencies in Knoxville, TN
Of the advertising agencies in Knoxville, TN that had employees in March 2023, 66.7% had fewer than five (the U.S. share is 68.2%). 100.0% had fewer than ten. Small teams usually share the phone: the person who answers is often also serving a customer or doing the job, which is when calls get missed.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 14 | 66.7% | 68.2% |
| 5–9 employees | 7 | 33.3% | 12.0% |
| 10–19 employees | not published | — | 8.4% |
| 20–49 employees | not published | — | 6.4% |
| 50 or more employees | 0 | 0.0% | 5.0% |
Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.
What advertising agencies in Knoxville, TN use the phone for
Agencies manage many client relationships at once, and clients expect to reach their account team quickly. Recording and summarizing calls helps teams keep track of approvals and requests.
Typical inbound and outbound calls for advertising agencies in Knoxville, TN:
- A production vendor calls about a shoot.
- A prospect calls about agency services.
- The agency calls a client to review creative.
When nobody can pick up
Launch-day issues can be urgent; otherwise after-hours calls can wait.
Business-hours routing in Callata sends calls to voicemail, a teammate's cell or an AI agent once the day ends, and voicemails arrive transcribed with an urgency flag.
What a phone system costs an advertising agency in Knoxville, TN
The average advertising agency in Knoxville, TN has 24.1 employees, so a 24-person team is a reasonable benchmark. Per-seat business phone plans bill every one of those people. At month-to-month list prices checked September 28, 2026, 24 users on RingCentral RingEX Core cost $720.00 a month and 24 on Ooma Office Pro cost $598.80. On Callata the same 24 people cost $479.00 a month, less than either per-seat plan.
The annual difference against RingCentral's monthly list price comes to $2,892. Some vendors discount annual contracts; the table shows month-to-month prices.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $479.00 | $5,748.00 |
| Quo (Starter) | $19.00 per user | $456.00 | $5,472.00 |
| Nextiva (Core) | $23.00 per user | $552.00 | $6,624.00 |
| Ooma (Office Pro) | $24.95 per user | $598.80 | $7,185.60 |
| Dialpad (Standard) | $27.00 per user | $648.00 | $7,776.00 |
| RingCentral (RingEX Core) | $30.00 per user | $720.00 | $8,640.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Which area code to use in Knoxville, TN
NANPA records place the exchanges of the area's named cities and towns in 2 area codes. 865 has the most, with 409 of 436 exchanges (94%). Callata's plan includes up to 3 local numbers; you can pick them in the area codes your clients recognize, subject to carrier inventory, or port the number you already have for free.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 865 | 409 | Eastern | 1999 | none |
| 423 | 27 | Eastern and Central | 1995 | 729 |
Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.
How Callata works for advertising agencies
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, TN, 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.
Frequently asked questions
How many advertising agencies are there in Knoxville, TN?
Census County Business Patterns counted 25 advertising agencies in the Knoxville, TN metro area in 2023. They employed 602 people in mid-March.
What does a business phone system cost for a 24-person advertising agency?
At month-to-month list prices checked September 28, 2026, 24 users cost $720.00 a month on RingCentral RingEX Core and $598.80 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $479.00.
What area code should an advertising agency in Knoxville, TN use?
Area code 865 has the most assigned exchanges among the area's named places, followed by 423. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for an advertising agency?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute.