In the Charleston area there are 6 residential Fiber providers covering 67.74% of the city. The average home can get speeds up to 4,320 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 Fiber internet providers in Charleston, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in Charleston, SC please click below.
Charleston, SC Availability Maps
Fiber 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 the Charleston area 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
Where in the Charleston area is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 67.74% of the Charleston area. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in the Charleston area above to see who has service at your home.
How fast is fiber internet in the Charleston area?
The map below shows maximum fiber internet speeds by area in the Charleston area.
Fiber Internet Speed Key
The average Charleston home can get up to 4,320 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 8,000 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 10.92% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in the Charleston area.
Fiber internet speeds tend to be faster in the northeast parts of the Charleston area, and slower in the southwest areas of the city.
Is fiber the fastest internet I can get in the Charleston area?
The fastest internet for you may vary based on where in the Charleston area you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 60.73% of Charleston homes.
- Cable is fastest for 37.25% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 1.66% of Charleston homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in the Charleston area, along with details on where in the Charleston area and at what speeds.
EarthLink Fiber in Charleston, SC
EarthLink fiber coverage
About 52.23%, or 417,681 people, have EarthLink fiber 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 the Charleston area.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in the Charleston area. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout the Charleston area. The fastest plan anyone in the Charleston area 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 4,213 Mbps.
Show all download speeds
- 80.3% up to 5,000.0 Mbps
- 19.7% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In the Charleston area 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 the Charleston area 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 4,213 Mbps.
Show all upload speeds
- 80.3% up to 5,000.0 Mbps
- 19.7% up to 1,000.0 Mbps
AT&T Fiber in Charleston, SC
AT&T fiber coverage
About 52.23%, or 417,681 people, have AT&T fiber 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 the Charleston area.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in the Charleston area. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout the Charleston area. The fastest plan anyone in the Charleston area 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 4,213 Mbps.
Show all download speeds
- 80.3% up to 5,000.0 Mbps
- 19.7% up to 1,000.0 Mbps
AT&T fiber upload speeds
In the Charleston area 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 the Charleston area 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 4,213 Mbps.
Show all upload speeds
- 80.3% up to 5,000.0 Mbps
- 19.7% up to 1,000.0 Mbps
Home Telecom Fiber in Charleston, SC
Home Telecom fiber coverage
About 19.03%, or 152,158 people, have Home Telecom fiber internet available to them in the city. The company covers the northeast, west, northwest, south, central, east, and north Charleston area. Home Telecom is a large internet service provider internet service providers in the US, with internet service available in a small portion of the Charleston area.
Home Telecom fiber download speeds
Home Telecom is above average when comparing download speeds to all other internet providers in the Charleston area. Versus other fiber providers in the area, Home Telecom fiber is above average. There are no different maximum speeds throughout the Charleston area. The fastest plan anyone in the Charleston area can order from Home Telecom goes up to 5,000 Mbps, and all Charleston customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Home Telecom fiber upload speeds
In the Charleston area download speeds tend to be equal to than upload speeds for Home Telecom fiber. Compared to other ISPs, Home Telecom is above average where upload speeds are concerned, and above average compared to other Charleston fiber providers. Home Telecom offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in the Charleston area is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
XFINITY from Comcast Fiber in Charleston, SC
XFINITY fiber coverage
About 2.51%, or 20,074 people, have XFINITY fiber internet available to them in the city. The company covers the northwest, east, west, and northeast 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 the Charleston area.
XFINITY from Comcast fiber download speeds
XFINITY is average when comparing download speeds to all other internet providers in the Charleston area. Versus other fiber providers in the area, XFINITY fiber is below average. There are 3 different maximum speeds throughout the Charleston area. The fastest plan anyone in the Charleston area can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Charleston customers is up to 1,411 Mbps.
Show all download speeds
- 30.5% up to 2,000.0 Mbps
- 53.4% up to 1,200.0 Mbps
- 16.1% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In the Charleston area download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and below average compared to other Charleston fiber providers. XFINITY offers 3 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 the Charleston area is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 410 Mbps.
Show all upload speeds
- 33.7% up to 1,000.0 Mbps
- 22.9% up to 250.0 Mbps
- 43.4% up to 35.0 Mbps
Charleston Fiber by Area
This information is most helpful to those looking for homes or considering moving to the Charleston area or any of the areas nearby.
How does fiber internet in the Charleston area compare to the rest of South Carolina?
Fiber internet speeds in the Charleston area are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 4,320 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in South Carolina is 0.00% versus 67.74% in the Charleston area.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around the Charleston area are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet 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
- Johns Island, SC: less fiber coverage, faster speeds
- Fenwick Hills, SC: more fiber coverage, faster speeds
- Charleston Afb, SC: less fiber coverage, faster speeds
- Sullivans Island, SC: more fiber coverage, faster speeds
- Red Top, SC: less fiber coverage, slower speeds
- Folly Beach, SC: less fiber coverage, faster speeds
- Mount Pleasant, SC: more fiber coverage, slower speeds
- Legareville, SC: less fiber coverage, slower speeds
- Isle Of Palms, SC: more fiber coverage, faster speeds
- Ravenel, SC: less fiber coverage, slower speeds
Cities with Similar Populations
- Dayton, OH: more fiber coverage, faster speeds
- Stockton, CA: less fiber coverage, faster speeds
- Greensboro, NC: more fiber coverage, slower speeds
- Columbia, SC: more fiber coverage, faster speeds
- Sarasota, FL: more fiber coverage, faster speeds
- Boise, ID: less fiber coverage, slower speeds
- Fort Myers, FL: more fiber coverage, faster speeds
- Oxnard, CA: less fiber coverage, faster speeds
- Colorado Springs, CO: less fiber coverage, faster speeds
- Baton Rouge, LA: more fiber coverage, slower speeds