In Glen Carbon there are 3 residential Fiber providers covering 48.47% of the city. The average home can get speeds up to 5,995 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 Glen Carbon, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Glen Carbon, IL please click below.
Glen Carbon, IL Availability Maps
Fiber Internet Service Providers in Glen Carbon
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 Glen Carbon are not shown.
Glen Carbon 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 Glen Carbon is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 48.47% of Glen Carbon. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Cable One. Call one of the companies with service in Glen Carbon above to see who has service at your home.
How fast is fiber internet in Glen Carbon?
The map below shows maximum fiber internet speeds by area in Glen Carbon.
Fiber Internet Speed Key
The average Glen Carbon home can get up to 5,995 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 7,000 Mbps, which 26.64% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.26% 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 Glen Carbon.
Fiber internet speeds tend to be faster in the north parts of Glen Carbon, and slower in the northwest areas of the city.
Is fiber the fastest internet I can get in Glen Carbon?
The fastest internet for you may vary based on where in Glen Carbon you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 48.47% of Glen Carbon homes.
- Cable is fastest for 49.85% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.23%.
- Satellite internet may be the only option for less than 1% of Glen Carbon homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Glen Carbon, along with details on where in Glen Carbon and at what speeds.
EarthLink Fiber in Glen Carbon, IL
EarthLink fiber coverage
About 30.23%, or 4,732 people, have EarthLink fiber internet available to them in the city. The company covers the northwest, northeast, southwest, west, south, north, southeast, and central Glen Carbon 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 Glen Carbon.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Glen Carbon. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are 2 different maximum speeds throughout Glen Carbon. The fastest plan anyone in Glen Carbon 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 Glen Carbon customers is up to 4,833 Mbps.
Show all download speeds
- 95.8% up to 5,000.0 Mbps
- 4.2% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Glen Carbon 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 one of the slowest compared to other Glen Carbon 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 Glen Carbon 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 4,833 Mbps.
Show all upload speeds
- 95.8% up to 5,000.0 Mbps
- 4.2% up to 1,000.0 Mbps
AT&T Fiber in Glen Carbon, IL
AT&T fiber coverage
About 30.23%, or 4,732 people, have AT&T fiber internet available to them in the city. The company covers the northwest, northeast, southwest, west, south, north, southeast, and central Glen Carbon 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 Glen Carbon.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Glen Carbon. Versus other fiber providers in the area, AT&T fiber is one of the slowest. There are 2 different maximum speeds throughout Glen Carbon. The fastest plan anyone in Glen Carbon 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 Glen Carbon customers is up to 4,833 Mbps.
Show all download speeds
- 95.8% up to 5,000.0 Mbps
- 4.2% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Glen Carbon 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 one of the slowest compared to other Glen Carbon 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 Glen Carbon 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 4,833 Mbps.
Show all upload speeds
- 95.8% up to 5,000.0 Mbps
- 4.2% up to 1,000.0 Mbps
Sparklight Fiber in Glen Carbon, IL
Sparklight fiber coverage
About 26.64%, or 4,170 people, have Sparklight fiber internet available to them in the city. The company covers the entire Glen Carbon area. Sparklight is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Glen Carbon.
Sparklight fiber download speeds
Sparklight is the fastest when comparing download speeds to all other internet providers in Glen Carbon. Versus other fiber providers in the area, Sparklight fiber is the fastest. There are no different maximum speeds throughout Glen Carbon. The fastest plan anyone in Glen Carbon can order from Sparklight goes up to 7,000 Mbps, and all Glen Carbon customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Sparklight fiber upload speeds
In Glen Carbon download speeds tend to be equal to than upload speeds for Sparklight fiber. Compared to other ISPs, Sparklight is the fastest where upload speeds are concerned, and the fastest compared to other Glen Carbon fiber providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Glen Carbon is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Glen Carbon Fiber by Area
This information is most helpful to those looking for homes or considering moving to Glen Carbon or any of the areas nearby.
How does fiber internet in Glen Carbon compare to the rest of Illinois?
Fiber internet speeds in Glen Carbon are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 5,995 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 48.47% in Glen Carbon.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Glen Carbon 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
- Maryville, IL: less fiber coverage, faster speeds
- Edwardsville, IL: more fiber coverage, faster speeds
- Poag, IL: less fiber coverage, faster speeds
- Meadow Heights, IL: less fiber coverage, faster speeds
- Kuhn Station, IL: more fiber coverage, slower speeds
- Troy, IL: less fiber coverage, faster speeds
- Wanda, IL: more fiber coverage, slower speeds
- Collinsville, IL: more fiber coverage, slower speeds
- Pontoon Beach, IL: less fiber coverage, faster speeds
- Lumaghi Heights, IL: more fiber coverage, faster speeds
Cities with Similar Populations
- Stella Rincon, PR: more fiber coverage, slower speeds
- Glens Falls, NY: less fiber coverage, slower speeds
- Glenshaw, PA: more fiber coverage, slower speeds
- Glenwood Springs, CO: more fiber coverage, slower speeds
- Gulf Shores, AL: more fiber coverage, faster speeds
- Hanover, MA: more fiber coverage, slower speeds
- South River, NJ: less fiber coverage, faster speeds
- South Sioux City, NE: more fiber coverage, slower speeds
- Sparta, WI: more fiber coverage, faster speeds
- Spring Branch, TX: more fiber coverage, slower speeds