In Charleston there are 10 residential internet providers covering 99.59% of the city. The average home can get speeds up to 3,143 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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10 Internet Service Providers in Charleston
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 Charleston are not shown.
Charleston 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 Charleston
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 99.59% of Charleston. 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 Twin Lakes. Now you can call companies in Charleston with more confidence that they might be available.
How fast are internet speeds in Charleston?
The map below shows maximum internet speeds by area in Charleston.
Internet Speed Key
The average Charleston home can get up to 3,143 Mbps on their internet plan. For most people, the fastest download speed in the city is 8,000 Mbps, which 20.49% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 25 Mbps. See the internet provider details below for info about their speed and coverage in Charleston.
Internet speeds tend to be faster in the south parts of Charleston, and slower in the central areas of the city.
What type of internet should I choose in Charleston?
The fastest internet for you may vary based on where in Charleston you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 54.65% of Charleston homes.
- Cable is fastest for 37.53% of the city.
- DSL is fastest for 7.20%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Charleston homes.
Internet Market Health in Charleston
Internet Competition Key
The map shows how competitive the Charleston 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 Charleston based on what connections the average home has availabile:
- Average number of internet service providers to a home: 5.8 (healthy)
- Average types of service (fiber, cable, DSL, etc): 2.9 (healthy)
- Average providers with broadband (25 Mbps+) speeds: 5.1 (healthy)
Overall, competition is healthy.
Charleston internet customers have the ability to buy internet service from 1 to 11 different providers, depending on where they live. For different types of service, Charleston homes have between 1 and 4 options. The type(s) of service available are fixed wireless, cable, dsl, and fiber, 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. Charleston internet customers who want faster speeds have between 1 and 11 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, Charleston is doing better than most.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Charleston, along with details on where in Charleston and at what speeds.
Spectrum Cable in Charleston, TN
Spectrum cable coverage
About 65.76%, or 3,242 people, have Spectrum cable internet available to them in the city. The company covers the northwest, central, west, southwest, east, southeast, north, and northeast Charleston area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in much of Charleston.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Charleston. Versus other cable providers in the area, Spectrum cable is the slowest. There are no different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from Spectrum goes up to 1,000 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Charleston download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and one of the fastest compared to other Charleston cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Charleston is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
EarthLink DSL in Charleston, TN
EarthLink DSL coverage
About 61.66%, or 3,040 people, have EarthLink DSL internet available to them in the city. The company covers the entire Charleston area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Charleston.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Charleston. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Charleston customers is up to 35 Mbps.
Show all download speeds
- 12.4% up to 100.0 Mbps
- 6.8% up to 75.0 Mbps
- 17.7% up to 50.0 Mbps
- 12.3% up to 25.0 Mbps
- 50.7% up to 10.0 Mbps
EarthLink DSL upload speeds
In Charleston download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the fastest compared to other Charleston DSL providers. EarthLink offers 4 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 6.8 Mbps.
Show all upload speeds
- 19.3% up to 20.0 Mbps
- 17.7% up to 10.0 Mbps
- 12.3% up to 5.0 Mbps
- 50.7% up to 1.0 Mbps
AT&T DSL in Charleston, TN
AT&T DSL coverage
About 61.66%, or 3,040 people, have AT&T DSL internet available to them in the city. The company covers the entire Charleston area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Charleston.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Charleston. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Charleston customers is up to 35 Mbps.
Show all download speeds
- 12.4% up to 100.0 Mbps
- 6.8% up to 75.0 Mbps
- 17.7% up to 50.0 Mbps
- 12.3% up to 25.0 Mbps
- 50.7% up to 10.0 Mbps
AT&T DSL upload speeds
In Charleston download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the fastest compared to other Charleston DSL providers. AT&T offers 4 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 6.8 Mbps.
Show all upload speeds
- 19.3% up to 20.0 Mbps
- 17.7% up to 10.0 Mbps
- 12.3% up to 5.0 Mbps
- 50.7% up to 1.0 Mbps
Spectrum Fiber in Charleston, TN
Spectrum fiber coverage
About 31.22%, or 1,539 people, have Spectrum fiber internet available to them in the city. The company covers the southeast, southwest, south, and east Charleston area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Charleston.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Charleston. Versus other fiber providers in the area, Spectrum fiber is the slowest. There are no different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from Spectrum goes up to 1,000 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Charleston download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other Charleston fiber providers. Spectrum offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 488 Mbps.
Show all upload speeds
- 97.4% up to 500.0 Mbps
- 2.6% up to 35.0 Mbps
EarthLink Fiber in Charleston, TN
EarthLink fiber coverage
About 30.41%, or 1,499 people, have EarthLink fiber internet available to them in the city. The company covers the west, southwest, northwest, central, and south Charleston 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 Charleston.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Charleston. Versus other fiber providers in the area, EarthLink fiber is below average. There are 2 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Charleston customers is up to 4,277 Mbps.
Show all download speeds
- 81.9% up to 5,000.0 Mbps
- 18.1% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Charleston download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and above average compared to other Charleston fiber providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 4,277 Mbps.
Show all upload speeds
- 81.9% up to 5,000.0 Mbps
- 18.1% up to 1,000.0 Mbps
AT&T Fiber in Charleston, TN
AT&T fiber coverage
About 30.41%, or 1,499 people, have AT&T fiber internet available to them in the city. The company covers the west, southwest, northwest, central, and south Charleston 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 Charleston.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Charleston. Versus other fiber providers in the area, AT&T fiber is below average. There are 2 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Charleston customers is up to 4,277 Mbps.
Show all download speeds
- 81.9% up to 5,000.0 Mbps
- 18.1% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Charleston download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is above average where upload speeds are concerned, and above average compared to other Charleston fiber providers. AT&T offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 4,277 Mbps.
Show all upload speeds
- 81.9% up to 5,000.0 Mbps
- 18.1% up to 1,000.0 Mbps
Twin Lakes Fiber in Charleston, TN
Twin Lakes fiber coverage
About 20.49%, or 1,010 people, have Twin Lakes fiber internet available to them in the city. The company covers the southeast, southwest, northwest, and south Charleston area. Twin Lakes is a large internet service provider internet service providers in the US, with internet service available in a small portion of Charleston.
Twin Lakes fiber download speeds
Twin Lakes is the fastest when comparing download speeds to all other internet providers in Charleston. Versus other fiber providers in the area, Twin Lakes fiber is the fastest. There are no different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from Twin Lakes goes up to 8,000 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
Twin Lakes fiber upload speeds
In Charleston download speeds tend to be equal to than upload speeds for Twin Lakes fiber. Compared to other ISPs, Twin Lakes is the fastest where upload speeds are concerned, and the fastest compared to other Charleston fiber providers. Twin Lakes offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Charleston is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
XFINITY from Comcast Cable in Charleston, TN
XFINITY cable coverage
About 8.05%, or 397 people, have XFINITY cable internet available to them in the city. The company covers the southeast and east Charleston 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 Charleston.
XFINITY from Comcast cable download speeds
XFINITY is below average when comparing download speeds to all other internet providers in Charleston. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from XFINITY goes up to 1,200 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Charleston 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 one of the fastest compared to other Charleston cable providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Charleston is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
T-Mobile Home Internet Fixed Wireless in Charleston, TN
T-Mobile Home Internet fixed wireless coverage
About 93.69%, or 4,619 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Charleston area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in most of Charleston.
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 Charleston. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Charleston customers is up to 52 Mbps.
Show all download speeds
- 36.0% up to 100.0 Mbps
- 64.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Charleston 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 below average compared to other Charleston fixed wireless providers. T-Mobile Home Internet offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 9.1 Mbps.
Show all upload speeds
- 36.0% up to 20.0 Mbps
- 64.0% up to 3.0 Mbps
Verizon Fixed Wireless in Charleston, TN
Verizon fixed wireless coverage
About 60.37%, or 2,976 people, have Verizon fixed wireless internet available to them in the city. The company covers the southeast, central, west, southwest, northwest, east, north, and south Charleston area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Charleston.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Charleston. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from Verizon goes up to 300 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Charleston download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and average compared to other Charleston fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Charleston is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
EarthLink Fixed Wireless in Charleston, TN
EarthLink fixed wireless coverage
About 50.79%, or 2,504 people, have EarthLink fixed wireless internet available to them in the city. The company covers the entire Charleston area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Charleston.
EarthLink fixed wireless download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Charleston. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are 2 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Charleston customers is up to 34 Mbps.
Show all download speeds
- 11.5% up to 100.0 Mbps
- 88.5% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In Charleston download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Charleston fixed wireless providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 5.0 Mbps.
Show all upload speeds
- 11.5% up to 20.0 Mbps
- 88.5% up to 3.0 Mbps
AT&T Fixed Wireless in Charleston, TN
AT&T fixed wireless coverage
About 50.79%, or 2,504 people, have AT&T fixed wireless internet available to them in the city. The company covers the entire Charleston area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Charleston.
AT&T fixed wireless download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Charleston. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are 2 different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Charleston customers is up to 34 Mbps.
Show all download speeds
- 11.5% up to 100.0 Mbps
- 88.5% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In Charleston download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the slowest compared to other Charleston fixed wireless providers. AT&T offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Charleston is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 5.0 Mbps.
Show all upload speeds
- 11.5% up to 20.0 Mbps
- 88.5% up to 3.0 Mbps
AIC Wireless Fixed Wireless in Charleston, TN
AIC Wireless fixed wireless coverage
About 8.22%, or 405 people, have AIC Wireless fixed wireless internet available to them in the city. The company covers the southeast, east, and south Charleston area. AIC Wireless is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Charleston.
AIC Wireless fixed wireless download speeds
AIC Wireless is below average when comparing download speeds to all other internet providers in Charleston. Versus other fixed wireless providers in the area, AIC Wireless fixed wireless is average. There are no different maximum speeds throughout Charleston. The fastest plan anyone in Charleston can order from AIC Wireless goes up to 100 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
AIC Wireless fixed wireless upload speeds
In Charleston download speeds tend to be faster than than upload speeds for AIC Wireless fixed wireless. Compared to other ISPs, AIC Wireless is below average where upload speeds are concerned, and the fastest compared to other Charleston fixed wireless providers. AIC Wireless offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Charleston is up to 60 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 60.0 Mbps
Charleston Internet by Area
This information is most helpful to those looking for homes or considering moving to Charleston or any of the areas nearby.
How does internet in Charleston compare to the rest of Tennessee?
Internet speeds in Charleston are slower versus the average speeds in Tennessee: 4,747 Mbps in Tennessee versus 3,143 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Tennessee is 98.89% versus 99.59% in Charleston.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Charleston 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
- Watt Heights, TN: less internet coverage, slower speeds
- Calhoun, TN: less internet coverage, slower speeds
- Sanford, TN: more internet coverage, slower speeds
- Patty, TN: more internet coverage, slower speeds
- Cleveland, TN: less internet coverage, faster speeds
- Lamontville, TN: more internet coverage, slower speeds
- South Liberty, TN: more internet coverage, slower speeds
- Benton, TN: more internet coverage, faster speeds
- Georgetown, TN: more internet coverage, faster speeds
- Ocoee, TN: more internet coverage, slower speeds
Cities with Similar Populations
- China Spring, TX: more internet coverage, slower speeds
- Mayflower, AR: less internet coverage, slower speeds
- Clifton, TX: less internet coverage, faster speeds
- Clever, MO: more internet coverage, slower speeds
- Gatlinburg, TN: less internet coverage, slower speeds
- Geneva, AL: less internet coverage, slower speeds
- Geneva, FL: less internet coverage, slower speeds
- Clay City, KY: less internet coverage, faster speeds
- Clay Center, KS: more internet coverage, slower speeds
- Genoa City, WI: more internet coverage, slower speeds