In Illinois there are 4 residential DSL providers covering 80.99% of the state. The average home can get speeds up to 65 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 Illinois.
To see availability maps for all providers including fiber, cable, DSL, and more in Illinois please click below.
DSL Internet Service Providers in Illinois
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 Illinois are not shown.
Illinois 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 Illinois is DSL internet available?
DSL Internet Availability Key
DSL is available in 80.99% of Illinois. 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 Illinois above to see who has service at your home.
How fast is DSL internet in Illinois?
The map below shows maximum DSL internet speeds by area in Illinois.
DSL Internet Speed Key
The average Illinois home can get up to 65 Mbps on their DSL internet plan. The fastest DSL download speed in the state is 500 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, 20.45% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Illinois.
DSL internet speeds tend to be faster in the northeast parts of Illinois, and slower in the west areas of the state.
Is DSL the fastest internet I can get in Illinois?
The fastest internet for you may vary based on where in Illinois you live. In general, cable competes most often with DSL in the state.
- Fiber is the fastest internet type for 34.68% of Illinois homes.
- Cable is fastest for 60.62% of the state.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 3.52%.
- Satellite internet may be the only option for less than 1% of Illinois homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Illinois, along with details on where in Illinois and at what speeds.
EarthLink DSL in Illinois
EarthLink DSL coverage
About 69.52%, or 8,907,725 people, have EarthLink DSL internet available to them in the state. The company covers the entire Illinois area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Illinois.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Illinois. Versus other DSL providers in the area, EarthLink DSL is above average. There are 5 different maximum speeds throughout Illinois. The fastest plan anyone in Illinois can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the state-wide average maximum speed for Illinois customers is up to 68 Mbps.
Show all download speeds
- 48.9% up to 100.0 Mbps
- 11.3% up to 75.0 Mbps
- 16.0% up to 50.0 Mbps
- 4.7% up to 25.0 Mbps
- 19.1% up to 10.0 Mbps
EarthLink DSL upload speeds
In Illinois 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 above average compared to other Illinois DSL providers. EarthLink offers 4 different upload speeds across the state, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Illinois 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 14 Mbps.
Show all upload speeds
- 60.2% up to 20.0 Mbps
- 16.0% up to 10.0 Mbps
- 4.7% up to 5.0 Mbps
- 19.1% up to 1.0 Mbps
AT&T DSL in Illinois
AT&T DSL coverage
About 69.52%, or 8,907,725 people, have AT&T DSL internet available to them in the state. The company covers the entire Illinois area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Illinois.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Illinois. Versus other DSL providers in the area, AT&T DSL is above average. There are 5 different maximum speeds throughout Illinois. The fastest plan anyone in Illinois can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the state-wide average maximum speed for Illinois customers is up to 68 Mbps.
Show all download speeds
- 48.9% up to 100.0 Mbps
- 11.3% up to 75.0 Mbps
- 16.0% up to 50.0 Mbps
- 4.7% up to 25.0 Mbps
- 19.1% up to 10.0 Mbps
AT&T DSL upload speeds
In Illinois 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 above average compared to other Illinois DSL providers. AT&T offers 4 different upload speeds across the state, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Illinois 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 14 Mbps.
Show all upload speeds
- 60.2% up to 20.0 Mbps
- 16.0% up to 10.0 Mbps
- 4.7% up to 5.0 Mbps
- 19.1% up to 1.0 Mbps
Frontier Communications DSL in Illinois
Frontier DSL coverage
About 8.96%, or 1,147,934 people, have Frontier DSL internet available to them in the state. The company covers the entire Illinois area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Illinois.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Illinois. Versus other DSL providers in the area, Frontier DSL is average. There are 5 different maximum speeds throughout Illinois. The fastest plan anyone in Illinois can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the state-wide average maximum speed for Illinois customers is up to 32 Mbps.
Show all download speeds
- 9.2% up to 115.0 Mbps
- 8.6% up to 90.0 Mbps
- 6.1% up to 70.0 Mbps
- 6.3% up to 45.0 Mbps
- 69.8% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Illinois download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is below average where upload speeds are concerned, and below average compared to other Illinois DSL providers. Frontier offers 6 different upload speeds across the state, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Illinois is up to 8.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 2.1 Mbps.
Show all upload speeds
- 0.0% up to 8.0 Mbps
- 9.2% up to 7.0 Mbps
- 0.0% up to 6.0 Mbps
- 8.6% up to 5.0 Mbps
- 12.4% up to 3.0 Mbps
- 69.8% up to 1.0 Mbps
Fidium Fiber DSL in Illinois
Fidium DSL coverage
About 1.13%, or 145,281 people, have Fidium DSL internet available to them in the state. The company covers the south, southwest, central, southeast, and east Illinois area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Illinois.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Illinois. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 14 different maximum speeds throughout Illinois. The fastest plan anyone in Illinois can order from Fidium goes up to 500 Mbps, the slowest package only goes up to 10 Mbps, and the state-wide average maximum speed for Illinois customers is up to 155 Mbps.
Show all download speeds
- 20.2% up to 500.0 Mbps
- 1.6% up to 400.0 Mbps
- 2.4% up to 300.0 Mbps
- 0.9% up to 250.0 Mbps
- 1.1% up to 200.0 Mbps
- 0.9% up to 150.0 Mbps
- 16.9% up to 100.0 Mbps
- 4.2% up to 90.0 Mbps
- 3.7% up to 80.0 Mbps
- 2.6% up to 70.0 Mbps
- 4.9% up to 60.0 Mbps
- 5.8% up to 50.0 Mbps
- 0.9% up to 30.0 Mbps
- 33.9% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Illinois download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is below average where upload speeds are concerned, and above average compared to other Illinois DSL providers. Fidium offers 8 different upload speeds across the state, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Illinois is up to 75 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 22 Mbps.
Show all upload speeds
- 20.2% up to 75.0 Mbps
- 4.0% up to 70.0 Mbps
- 2.0% up to 40.0 Mbps
- 0.9% up to 30.0 Mbps
- 19.0% up to 10.0 Mbps
- 19.2% up to 5.0 Mbps
- 0.9% up to 3.0 Mbps
- 33.9% up to 1.0 Mbps
Illinois DSL by Area
This information is most helpful to those looking for homes or considering moving to Illinois or any of the areas nearby.
How does DSL internet in Illinois compare to the rest of the United States?
DSL internet speeds in Illinois are much faster versus the average speeds in the United States: 0.00 Mbps in the United States versus 65 Mbps in the state. The nation has similar DSL availability compared to the state. Average DSL coverage in the United States is 0.00% versus 80.99% in Illinois.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Illinois 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 states?
Below are states nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby States
- Indiana: less DSL coverage, slower speeds
- Wisconsin: less DSL coverage, slower speeds
- Missouri: less DSL coverage, slower speeds
- Iowa: less DSL coverage, slower speeds
- Kentucky: less DSL coverage, faster speeds
- Michigan: less DSL coverage, slower speeds
- Ohio: less DSL coverage, slower speeds
- Tennessee: less DSL coverage, slower speeds
- Minnesota: more DSL coverage, faster speeds
- West Virginia: less DSL coverage, slower speeds
States with Similar Populations
- Arizona: more DSL coverage, faster speeds
- Alabama: less DSL coverage, slower speeds
- New Hampshire: less DSL coverage, slower speeds
- Montana: less DSL coverage, slower speeds
- Mississippi: less DSL coverage, slower speeds
- Minnesota: more DSL coverage, faster speeds
- Michigan: less DSL coverage, slower speeds
- Massachusetts: less DSL coverage, slower speeds
- Maine: less DSL coverage, slower speeds
- Idaho: less DSL coverage, slower speeds