In North Charleston there are 2 residential DSL providers covering 74.22% of the city. The average home can get speeds up to 60 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 North Charleston, SC.
To see availability maps for all providers including fiber, cable, DSL, and more in North Charleston, SC please click below.
North Charleston, SC Availability Maps
DSL Internet Service Providers in North 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 North Charleston are not shown.
North 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 North Charleston is DSL internet available?
DSL Internet Availability Key
DSL is available in 74.22% of North Charleston. Areas in green have DSL 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 North Charleston above to see who has service at your home.
How fast is DSL internet in North Charleston?
The map below shows maximum DSL internet speeds by area in North Charleston.
DSL Internet Speed Key
The average North Charleston home can get up to 60 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which 33.19% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 23.54% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in North Charleston.
DSL internet speeds tend to be faster in the northwest parts of North Charleston, and slower in the southeast areas of the city.
Is DSL the fastest internet I can get in North Charleston?
The fastest internet for you may vary based on where in North Charleston you live. In general, cable competes most often with DSL in the city.
- Fiber is the fastest internet type for 43.86% of North Charleston homes.
- Cable is fastest for 55.50% 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 less than 1% of North Charleston homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in North Charleston, along with details on where in North Charleston and at what speeds.
AT&T DSL in North Charleston, SC
AT&T DSL coverage
About 74.22%, or 77,542 people, have AT&T DSL internet available to them in the city. The company covers the entire North Charleston area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of North Charleston.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in North Charleston. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout North Charleston. The fastest plan anyone in North 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 North Charleston customers is up to 60 Mbps.
Show all download speeds
- 44.7% up to 100.0 Mbps
- 8.3% up to 75.0 Mbps
- 9.6% up to 50.0 Mbps
- 5.7% up to 25.0 Mbps
- 31.7% up to 10.0 Mbps
AT&T DSL upload speeds
In North 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 North 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 North 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 12 Mbps.
Show all upload speeds
- 53.0% up to 20.0 Mbps
- 9.6% up to 10.0 Mbps
- 5.7% up to 5.0 Mbps
- 31.7% up to 1.0 Mbps
EarthLink DSL in North Charleston, SC
EarthLink DSL coverage
About 74.22%, or 77,542 people, have EarthLink DSL internet available to them in the city. The company covers the entire North Charleston area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of North Charleston.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in North Charleston. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout North Charleston. The fastest plan anyone in North 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 North Charleston customers is up to 60 Mbps.
Show all download speeds
- 44.7% up to 100.0 Mbps
- 8.3% up to 75.0 Mbps
- 9.6% up to 50.0 Mbps
- 5.7% up to 25.0 Mbps
- 31.7% up to 10.0 Mbps
EarthLink DSL upload speeds
In North 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 North 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 North 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 12 Mbps.
Show all upload speeds
- 53.0% up to 20.0 Mbps
- 9.6% up to 10.0 Mbps
- 5.7% up to 5.0 Mbps
- 31.7% up to 1.0 Mbps
North Charleston DSL by Area
This information is most helpful to those looking for homes or considering moving to North Charleston or any of the areas nearby.
How does DSL internet in North Charleston compare to the rest of South Carolina?
DSL internet speeds in North Charleston are much faster versus the average speeds in South Carolina: 0.00 Mbps in South Carolina versus 60 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in South Carolina is 0.00% versus 74.22% in North Charleston.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around North Charleston 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 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
- Charleston Afb, SC: less DSL coverage, slower speeds
- Hanahan, SC: less DSL coverage, faster speeds
- Ladson, SC: less DSL coverage, faster speeds
- Goose Creek, SC: less DSL coverage, faster speeds
- Red Top, SC: less DSL coverage, slower speeds
- Lincolnville, SC: more DSL coverage, slower speeds
- Summerville, SC: less DSL coverage, faster speeds
- Wando, SC: less DSL coverage, slower speeds
- Mount Pleasant, SC: less DSL coverage, faster speeds
- Slandsville, SC: more DSL coverage, faster speeds
Cities with Similar Populations
- Poughkeepsie, NY: less DSL coverage, slower speeds
- Portland, OR: less DSL coverage, faster speeds
- Rancho Cordova, CA: more DSL coverage, faster speeds
- Queen Creek, AZ: less DSL coverage, faster speeds
- Pleasanton, CA: more DSL coverage, faster speeds
- Rancho Cucamonga, CA: less DSL coverage, slower speeds
- Plainfield, IL: more DSL coverage, faster speeds
- Ponce, PR: less DSL coverage, slower speeds
- Pomona, CA: less DSL coverage, slower speeds
- Portland, ME: less DSL coverage, slower speeds