Knoxville is one of the few mid-size metros where a municipal utility fiber network is a serious commercial option. KUB Fiber is owned by the Knoxville Utilities Board, and the buildout has been expanding into commercial blocks since 2022. That changes the negotiation. AT&T and Comcast are still the volume providers, but in any neighborhood where KUB has lit fiber, you have a real third quote. Outside the city limits and into Knox County edges, you drop back to a two-carrier market, and pricing reflects that. Knowing which side of the KUB footprint your building sits on is the whole game.
Knoxville is mostly an AT&T and Comcast market with growing competition from KUB Fiber, the local utility fiber buildout. AT&T Business Fiber covers a large share of commercial blocks. Comcast Business has the dominant cable footprint. KUB has been rolling out fiber across the city since 2022. T-Mobile fixed wireless is widely available.
The pricing problem in Knoxville is the assumption that the utility fiber is just for residential. KUB Fiber business plans often beat AT&T and Comcast on price-to-speed where available.
Knoxville's commercial setup
Knoxville's commercial demand sits in three places. Gay Street is the historic commercial spine of downtown, lined with restored Class B office buildings and ground-floor retail. Market Square, just off Gay Street, is the small-format commercial and creative-office cluster built around the central plaza. The Old City, north of the railroad tracks, is the renovated warehouse district with mixed-use tenants and small business tenancy. Covenant Health, the largest healthcare system in East Tennessee, and Pilot Company, the truck-stop chain headquartered just outside Knoxville, are two of the largest commercial accounts in the metro and drive heavy enterprise telecom demand.
In 2025, the City of Knoxville said KUB Fiber's expansion had reached more Knox County neighborhoods and that more areas were scheduled for 2025 availability, expanding the reach of utility fiber to commercial blocks beyond the urban core. One pricing wrinkle: Downtown Knoxville's CBID is funded by a special assessment on property owners within the district, which is often passed through in commercial leases.
What you should be paying
These are dedicated internet ranges from current carrier wholesale data, marked up to typical retail.
Knoxville dedicated internet, typical retail (mid 50%)
Monthly recurring charge, dedicated internet access (DIA). Numbers are derived from current carrier wholesale quotes. Shown as a metro-tier band where city-level data is thin.
| Speed | Typical retail (mid 50%) | Sample size |
|---|---|---|
| 100 Mbps | $630 – $1,060/mo | n = 6 |
| 500 Mbps | $955 – $1,660/mo | n = 6 |
| 1 Gbps | $1,195 – $2,000/mo | n = 7 |
| 10 Gbps | $1,560 – $6,250/mo | n = 6 |
If your bill sits above the high end of the band, you are likely overpaying.
Analyze My Bill FreeFor AT&T Business Fiber at 1 Gbps, expect $150 to $230 a month for a single office. For Comcast Business coax at 600 Mbps, the fair price is $150 to $230 a month.
Carriers worth quoting in Knoxville
Five carriers cover most addresses in the metro.
- AT&T Business Fiber. Strong commercial fiber footprint across the metro.
- Comcast Business. Coax everywhere, fiber in select buildings.
- KUB Fiber. Local utility fiber, growing commercial footprint.
- T-Mobile Business Internet. $85 a month for 200 to 300 Mbps. Useful benchmark.
- Verizon 5G Business Internet. $99 a month at 400 Mbps.
If you have not had three of these on a quote sheet, you have not run a real comparison.
What to do this week
- Pull your most recent invoice. Find the contract end date and the side fees.
- Check whether KUB Fiber reaches your address. If yes, get one quote.
- Compare your base rate to the bands above. If you are 20 percent above the high end, the retention call is worth making.
See where your Knoxville bill sits against current rates
Upload your latest business internet invoice. We will run it against Knoxville carrier wholesale data and flag the side fees that should not be there.
Takes 60 seconds. No account required.
Related reading
Carriers worth a quote here
- AT&T Business
Dominant fiber footprint across Gay Street, Market Square, the Old City, and most of West Knoxville's commercial corridors. AT&T is the default incumbent and prices accordingly, but reps will sharpen pencils when you mention KUB or Comcast on the same address.
- Comcast Business
Largest cable footprint in the metro, strongest on coax broadband for small storefronts and offices under 25 seats. Metro Ethernet and DIA available in most commercial buildings but not price-competitive against AT&T fiber where both are on-net.
- Lumen Business
Limited on-net building list in Knoxville, mostly larger commercial towers downtown and near the UT campus. Worth quoting if you need a second carrier for diversity or you're a multi-site customer already on Lumen elsewhere.
- Crown Castle Fiber
Metro fiber routes through Knoxville with on-net coverage in select commercial buildings and tower sites. Good option for dark fiber, wavelengths, and dedicated transport if your site happens to sit on their route.
- Spectrum Business
Cable footprint in pockets around Knox County, especially north and east of the city core where Comcast is thinner. Useful as a comparison quote and occasionally the only cable option at a given address.
- T-Mobile Business
Fixed wireless is widely available across the metro and reasonable as a low-cost backup circuit. Not a primary for anyone running VoIP, card processing, or anything latency-sensitive.
What internet costs in Knoxville, Tennessee right now
Knoxville, Tennessee market notes
Common questions about business internet in Knoxville, Tennessee
Is KUB Fiber actually available for my Knoxville business?
Coverage is block by block. KUB has been expanding since 2022 and added more Knox County neighborhoods through 2025, but availability still varies by address. Use the KUB Fiber address lookup before you assume yes or no. If you're on a covered block, get a quote and compare it to AT&T and Comcast on the same speed and term.
Should I pick AT&T Business Fiber or Comcast Business for a small Knoxville office?
If both are on-net at your address, AT&T fiber usually wins on price-to-speed and latency for anything 500 Mbps and up. Comcast coax is competitive at the very low end and for storefronts that just need basic connectivity. Get quotes from both, plus KUB if available, and don't auto-renew either one without a fresh benchmark.
What's a fair price for 1 Gbps dedicated internet in Knoxville?
Roughly $1,195 to $1,800 a month for DIA at 1 Gbps in most commercial buildings, depending on whether the carrier is on-net and how long the term is. On-net buildings near downtown, UT, or the West Knoxville corridors sit at the lower end. Off-net addresses with a local loop build push toward the top of the range.
How long does a fiber install take in downtown Knoxville?
On-net AT&T installs in fiber-served buildings typically run 30 to 60 days. Off-net builds or older warehouse conversions in the Old City can stretch to 90 to 120 days if in-building work is needed. KUB Fiber timelines depend on whether your block is already lit. Always ask for an estimated RFS date in writing before signing.
Do I need DIA or is business broadband enough for my Knoxville office?
If you run VoIP, video calls, card processing, or remote access for staff, you want an SLA, which means DIA or a fiber product with credits. If you're a small storefront with basic email and web use, business broadband is fine and saves $500 to $1,200 a month. Don't pay for DIA you don't need.
Can I use T-Mobile fixed wireless as a backup circuit?
Yes, and it's a reasonable cheap secondary for an SD-WAN setup. Expect $50 to $100 a month for the line. Don't run it as your primary if you depend on consistent latency. Confirm signal strength at the building address before committing, since coverage varies more than the marketing maps suggest.