In Sullivan County there is 1 residential DSL provider covering 76.02% of the county. The average home can get speeds up to 47 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all DSL internet providers in Sullivan County, TN.
To see availability maps for all providers including fiber, cable, DSL, and more in Sullivan County, TN please click below.
Sullivan County, TN Availability Maps
DSL Internet Service Provider in Sullivan County
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Sullivan County are not shown.
Sullivan County Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Sullivan County is DSL internet available?
DSL Internet Availability Key
DSL is available in 76.02% of Sullivan County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Brightspeed. Call one of the companies with service in Sullivan County above to see who has service at your home.
How fast is DSL internet in Sullivan County?
The map below shows maximum DSL internet speeds by area in Sullivan County.
DSL Internet Speed Key
The average Sullivan County home can get up to 47 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 140 Mbps, which 6.67% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 38.82% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Sullivan County.
DSL internet speeds tend to be faster in the southwest parts of Sullivan County, and slower in the southeast areas of the county.
Is DSL the fastest internet I can get in Sullivan County?
The fastest internet for you may vary based on where in Sullivan County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 85.73% of Sullivan County homes.
- Cable is fastest for 13.56% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Sullivan County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Sullivan County, along with details on where in Sullivan County and at what speeds.
Brightspeed DSL in Sullivan County, TN
Brightspeed DSL coverage
About 76.02%, or 120,238 people, have Brightspeed DSL internet available to them in the county. The company covers the entire Sullivan County area. Brightspeed is one of the largest internet service providers internet service providers in the US, with internet service available in much of Sullivan County.
Brightspeed DSL download speeds
Brightspeed is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other DSL providers in the area, Brightspeed DSL is the fastest. There are 6 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from Brightspeed goes up to 140 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 47 Mbps.
Show all download speeds
- 8.8% up to 140.0 Mbps
- 15.9% up to 100.0 Mbps
- 6.6% up to 80.0 Mbps
- 6.8% up to 60.0 Mbps
- 10.9% up to 40.0 Mbps
- 51.1% up to 10.0 Mbps
Brightspeed DSL upload speeds
In Sullivan County download speeds tend to be faster than than upload speeds for Brightspeed DSL. Compared to other ISPs, Brightspeed is below average where upload speeds are concerned, and the fastest compared to other Sullivan County DSL providers. Brightspeed offers 5 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Sullivan County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Brightspeed customers can get speeds up to 5.2 Mbps.
Show all upload speeds
- 8.8% up to 20.0 Mbps
- 22.5% up to 10.0 Mbps
- 6.8% up to 5.0 Mbps
- 10.9% up to 3.0 Mbps
- 51.1% up to 1.0 Mbps
Sullivan County DSL by Area
This information is most helpful to those looking for homes or considering moving to Sullivan County or any of the areas nearby.
How does DSL internet in Sullivan County compare to the rest of Tennessee?
DSL internet speeds in Sullivan County are much faster versus the average speeds in Tennessee: 0.00 Mbps in Tennessee versus 47 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Tennessee is 0.00% versus 76.02% in Sullivan County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Sullivan County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Bristol City, VA: more DSL coverage, slower speeds
- Scott County, VA: less DSL coverage, faster speeds
- Hawkins County, TN: less DSL coverage, slower speeds
- Johnson County, TN: more DSL coverage, slower speeds
- Hancock County, TN: less DSL coverage, slower speeds
- Ashe County, NC: less DSL coverage, slower speeds
- Claiborne County, TN: less DSL coverage, slower speeds
- Grayson County, VA: more DSL coverage, slower speeds
- Alleghany County, NC: less DSL coverage, slower speeds
- Bell County, KY: less DSL coverage, slower speeds
Counties with Similar Populations
- Berrien County, MI: less DSL coverage, slower speeds
- Yellowstone County, MT: more DSL coverage, slower speeds
- Tolland County, CT: less DSL coverage, slower speeds
- St. Clair County, MI: more DSL coverage, slower speeds
- Scott County, MN: more DSL coverage, faster speeds
- Santa Fe County, NM: more DSL coverage, faster speeds
- Hampshire County, MA: less DSL coverage, slower speeds
- Greene County, OH: more DSL coverage, faster speeds
- Franklin County, PA: more DSL coverage, slower speeds
- Fairfield County, OH: more DSL coverage, faster speeds