In Duff there are 8 residential internet providers covering 93.42% of the city. The average home can get speeds up to 1,009 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.
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8 Internet Service Providers in Duff
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 Duff are not shown.
Duff 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
Availability maps for all providers in Duff
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 93.42% of Duff. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Highland Telephone Cooperative. Now you can call companies in Duff with more confidence that they might be available.
How fast are internet speeds in Duff?
The map below shows maximum internet speeds by area in Duff.
Internet Speed Key
The average Duff home can get up to 1,009 Mbps on their internet plan. For most people, the fastest download speed in the city is 1,200 Mbps, which 12.27% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.67% of homes can only purchase plans up to 25 Mbps. See the internet provider details below for info about their speed and coverage in Duff.
Internet speeds tend to be faster in the southwest parts of Duff, and slower in the northeast areas of the city.
What type of internet should I choose in Duff?
The fastest internet for you may vary based on where in Duff you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 79.49% of Duff homes.
- Cable is fastest for 12.27% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.67%.
- Satellite internet may be the only option for 6.58% of Duff homes.
Internet Market Health in Duff
Internet Competition Key
The map shows how competitive the Duff internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in Duff based on what connections the average home has availabile:
- Average number of internet service providers to a home: 3.6 (unhealthy)
- Average types of service (fiber, cable, DSL, etc): 2.4 (unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 1.7 (very unhealthy)
Overall, competition is unhealthy.
Duff internet customers have the ability to buy internet service from 1 to 6 different providers, depending on where they live. For different types of service, Duff homes have between 1 and 3 options. The type(s) of service available are fiber, dsl, fixed wireless, and cable, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Duff internet customers who want faster speeds have between 1 and 3 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, Duff needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Duff, along with details on where in Duff and at what speeds.
Highland Telephone Cooperative Fiber in Duff, TN
Highland Telephone Cooperative fiber coverage
About 91.76%, or 935 people, have Highland Telephone Cooperative fiber internet available to them in the city. The company covers the central, southwest, east, north, west, south, southeast, and northwest Duff area. Highland Telephone Cooperative is a large internet service provider internet service providers in the US, with internet service available in most of Duff.
Highland Telephone Cooperative fiber download speeds
Highland Telephone Cooperative is above average when comparing download speeds to all other internet providers in Duff. Versus other fiber providers in the area, Highland Telephone Cooperative fiber is the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from Highland Telephone Cooperative goes up to 1,000 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Highland Telephone Cooperative fiber upload speeds
In Duff download speeds tend to be equal to than upload speeds for Highland Telephone Cooperative fiber. Compared to other ISPs, Highland Telephone Cooperative is the fastest where upload speeds are concerned, and the fastest compared to other Duff fiber providers. Highland Telephone Cooperative offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
AT&T DSL in Duff, TN
AT&T DSL coverage
About 68.60%, or 699 people, have AT&T DSL internet available to them in the city. The company covers the central, east, southwest, south, north, and southeast Duff area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Duff.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Duff. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from AT&T goes up to 10 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
AT&T DSL upload speeds
In Duff download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Duff DSL providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
EarthLink DSL in Duff, TN
EarthLink DSL coverage
About 68.60%, or 699 people, have EarthLink DSL internet available to them in the city. The company covers the central, east, southwest, south, north, and southeast Duff area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Duff.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Duff. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from EarthLink goes up to 10 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
EarthLink DSL upload speeds
In Duff download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Duff DSL providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
XFINITY from Comcast Cable in Duff, TN
XFINITY cable coverage
About 12.27%, or 125 people, have XFINITY cable internet available to them in the city. The company covers the southwest and south Duff area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Duff.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Duff. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from XFINITY goes up to 1,200 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Duff download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the fastest compared to other Duff cable providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
US Cellular Fixed Wireless in Duff, TN
US Cellular fixed wireless coverage
About 42.30%, or 431 people, have US Cellular fixed wireless internet available to them in the city. The company covers the central, east, and north Duff area. US Cellular is one of the largest internet service providers internet service providers in the US, with internet service available in some of Duff.
US Cellular fixed wireless download speeds
US Cellular is one of the slowest when comparing download speeds to all other internet providers in Duff. Versus other fixed wireless providers in the area, US Cellular fixed wireless is the slowest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from US Cellular goes up to 10 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
US Cellular fixed wireless upload speeds
In Duff download speeds tend to be faster than than upload speeds for US Cellular fixed wireless. Compared to other ISPs, US Cellular is one of the slowest where upload speeds are concerned, and the slowest compared to other Duff fixed wireless providers. US Cellular offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
EarthLink Fixed Wireless in Duff, TN
EarthLink fixed wireless coverage
About 24.73%, or 252 people, have EarthLink fixed wireless internet available to them in the city. The company covers the central, west, and southwest Duff area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Duff.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Duff. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from EarthLink goes up to 25 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In Duff download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the fastest compared to other Duff fixed wireless providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
AT&T Fixed Wireless in Duff, TN
AT&T fixed wireless coverage
About 24.73%, or 252 people, have AT&T fixed wireless internet available to them in the city. The company covers the central, west, and southwest Duff area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Duff.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Duff. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from AT&T goes up to 25 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In Duff download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the fastest compared to other Duff fixed wireless providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
T-Mobile Home Internet Fixed Wireless in Duff, TN
T-Mobile Home Internet fixed wireless coverage
About 5.30%, or 54 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the north, northeast, and southwest Duff area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Duff.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in Duff. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is one of the fastest. There are no different maximum speeds throughout Duff. The fastest plan anyone in Duff can order from T-Mobile Home Internet goes up to 25 Mbps, and all Duff customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Duff download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and one of the fastest compared to other Duff fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Duff is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
Duff Internet by Area
This information is most helpful to those looking for homes or considering moving to Duff or any of the areas nearby.
How does internet in Duff compare to the rest of Tennessee?
Internet speeds in Duff are much slower versus the average speeds in Tennessee: 4,747 Mbps in Tennessee versus 1,009 Mbps in the city. The state has less internet availability compared to the city. Average internet coverage in Tennessee is 98.89% versus 93.42% in Duff.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Duff are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Cotula, TN: more internet coverage, faster speeds
- Tackett Creek, TN: more internet coverage, slower speeds
- Eagan, TN: less internet coverage, slower speeds
- Stinking Creek, TN: more internet coverage, slower speeds
- Ivydell, TN: more internet coverage, faster speeds
- Jellico, TN: more internet coverage, faster speeds
- Clairfield, TN: less internet coverage, slower speeds
- Newcomb, TN: more internet coverage, slower speeds
- Saxton, KY: more internet coverage, slower speeds
- Pearl, KY: more internet coverage, slower speeds
Cities with Similar Populations
- Vulcan, MI: more internet coverage, slower speeds
- Chester, MT: more internet coverage, slower speeds
- Cheyenne Wells, CO: more internet coverage, slower speeds
- Clarkson, NE: more internet coverage, faster speeds
- Cygnet, OH: more internet coverage, faster speeds
- Dry Creek, LA: more internet coverage, slower speeds
- Elizabeth, MN: more internet coverage, slower speeds
- Emery, SD: less internet coverage, slower speeds
- Toccopola, MS: more internet coverage, faster speeds
- Tryon, OK: more internet coverage, slower speeds