In Alton there are 10 residential internet providers covering 99.75% of the city. The average home can get speeds up to 3,925 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 Alton
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 Alton are not shown.
Alton 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 Alton
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 99.75% of Alton. 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 AT&T. Now you can call companies in Alton with more confidence that they might be available.
How fast are internet speeds in Alton?
The map below shows maximum internet speeds by area in Alton.
Internet Speed Key
The average Alton home can get up to 3,925 Mbps on their internet plan. For most people, the fastest download speed in the city is 7,000 Mbps, which 27.39% 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 Alton.
Internet speeds tend to be faster in the southeast parts of Alton, and slower in the northwest areas of the city.
What type of internet should I choose in Alton?
The fastest internet for you may vary based on where in Alton you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 66.36% of Alton homes.
- Cable is fastest for 32.14% 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 Alton homes.
Internet Market Health in Alton
Internet Competition Key
The map shows how competitive the Alton 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 Alton based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.3 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.5 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 5.7 (very healthy)
Overall, competition is very healthy.
Alton 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, Alton 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. Alton 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, Alton is doing quite well.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Alton, along with details on where in Alton and at what speeds.
Spectrum Cable in Alton, IL
Spectrum cable coverage
About 96.18%, or 25,148 people, have Spectrum cable internet available to them in the city. The company covers the entire Alton area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Alton.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Alton. Versus other cable providers in the area, Spectrum cable is the fastest. There are no different maximum speeds throughout Alton. The fastest plan anyone in Alton can order from Spectrum goes up to 1,000 Mbps, and all Alton customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Alton download speeds tend to be equal to than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the fastest compared to other Alton cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alton is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
EarthLink DSL in Alton, IL
EarthLink DSL coverage
About 84.93%, or 22,207 people, have EarthLink DSL internet available to them in the city. The company covers the entire Alton area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Alton.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Alton. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are 5 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 49 Mbps.
Show all download speeds
- 25.6% up to 100.0 Mbps
- 11.2% up to 75.0 Mbps
- 19.3% up to 50.0 Mbps
- 8.9% up to 25.0 Mbps
- 34.9% up to 10.0 Mbps
EarthLink DSL upload speeds
In Alton 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 Alton 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 Alton 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 10 Mbps.
Show all upload speeds
- 36.9% up to 20.0 Mbps
- 19.3% up to 10.0 Mbps
- 8.9% up to 5.0 Mbps
- 34.9% up to 1.0 Mbps
AT&T DSL in Alton, IL
AT&T DSL coverage
About 84.93%, or 22,207 people, have AT&T DSL internet available to them in the city. The company covers the entire Alton area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Alton.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Alton. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are 5 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 49 Mbps.
Show all download speeds
- 25.6% up to 100.0 Mbps
- 11.2% up to 75.0 Mbps
- 19.3% up to 50.0 Mbps
- 8.9% up to 25.0 Mbps
- 34.9% up to 10.0 Mbps
AT&T DSL upload speeds
In Alton 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 Alton 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 Alton 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 10 Mbps.
Show all upload speeds
- 36.9% up to 20.0 Mbps
- 19.3% up to 10.0 Mbps
- 8.9% up to 5.0 Mbps
- 34.9% up to 1.0 Mbps
EarthLink Fiber in Alton, IL
EarthLink fiber coverage
About 49.19%, or 12,862 people, have EarthLink fiber internet available to them in the city. The company covers the entire Alton area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Alton.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Alton. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 4,371 Mbps.
Show all download speeds
- 84.3% up to 5,000.0 Mbps
- 15.7% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Alton 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 Alton 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 Alton 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 4,371 Mbps.
Show all upload speeds
- 84.3% up to 5,000.0 Mbps
- 15.7% up to 1,000.0 Mbps
AT&T Fiber in Alton, IL
AT&T fiber coverage
About 49.19%, or 12,862 people, have AT&T fiber internet available to them in the city. The company covers the entire Alton area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Alton.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Alton. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 4,371 Mbps.
Show all download speeds
- 84.3% up to 5,000.0 Mbps
- 15.7% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Alton 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 Alton 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 Alton 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 4,371 Mbps.
Show all upload speeds
- 84.3% up to 5,000.0 Mbps
- 15.7% up to 1,000.0 Mbps
Sparklight Fiber in Alton, IL
Sparklight fiber coverage
About 27.39%, or 7,163 people, have Sparklight fiber internet available to them in the city. The company covers the entire Alton 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 Alton.
Sparklight fiber download speeds
Sparklight is the fastest when comparing download speeds to all other internet providers in Alton. Versus other fiber providers in the area, Sparklight fiber is the fastest. There are no different maximum speeds throughout Alton. The fastest plan anyone in Alton can order from Sparklight goes up to 7,000 Mbps, and all Alton customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Sparklight fiber upload speeds
In Alton 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 Alton fiber providers. Sparklight offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alton is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Spectrum Fiber in Alton, IL
Spectrum fiber coverage
About 3.29%, or 859 people, have Spectrum fiber internet available to them in the city. The company covers the northeast Alton area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Alton.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Alton. Versus other fiber providers in the area, Spectrum fiber is the slowest. There are no different maximum speeds throughout Alton. The fastest plan anyone in Alton can order from Spectrum goes up to 1,000 Mbps, and all Alton customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Alton download speeds tend to be equal to 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 Alton fiber providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alton is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
T-Mobile Home Internet Fixed Wireless in Alton, IL
T-Mobile Home Internet fixed wireless coverage
About 94.47%, or 24,702 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Alton 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 Alton.
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 Alton. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 63 Mbps.
Show all download speeds
- 51.2% up to 100.0 Mbps
- 48.8% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Alton 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 Alton 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 Alton 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 12 Mbps.
Show all upload speeds
- 51.2% up to 20.0 Mbps
- 48.8% up to 3.0 Mbps
Wisper Internet Fixed Wireless in Alton, IL
Wisper Internet fixed wireless coverage
About 44.10%, or 11,531 people, have Wisper Internet fixed wireless internet available to them in the city. The company covers the entire Alton area. Wisper Internet is a large internet service provider internet service providers in the US, with internet service available in some of Alton.
Wisper Internet fixed wireless download speeds
Wisper Internet is below average when comparing download speeds to all other internet providers in Alton. Versus other fixed wireless providers in the area, Wisper Internet fixed wireless is above average. There are 4 different maximum speeds throughout Alton. The fastest plan anyone in Alton can order from Wisper Internet goes up to 400 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Alton customers is up to 141 Mbps.
Show all download speeds
- 19.7% up to 400.0 Mbps
- 47.6% up to 100.0 Mbps
- 27.0% up to 50.0 Mbps
- 5.7% up to 25.0 Mbps
Wisper Internet fixed wireless upload speeds
In Alton download speeds tend to be faster than than upload speeds for Wisper Internet fixed wireless. Compared to other ISPs, Wisper Internet is below average where upload speeds are concerned, and below average compared to other Alton fixed wireless providers. Wisper Internet 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 Alton is up to 30 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, Wisper Internet customers can get speeds up to 17 Mbps.
Show all upload speeds
- 19.7% up to 30.0 Mbps
- 47.6% up to 20.0 Mbps
- 27.0% up to 5.0 Mbps
- 5.7% up to 3.0 Mbps
Verizon Fixed Wireless in Alton, IL
Verizon fixed wireless coverage
About 38.95%, or 10,184 people, have Verizon fixed wireless internet available to them in the city. The company covers the entire Alton area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in some of Alton.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Alton. Versus other fixed wireless providers in the area, Verizon fixed wireless is above average. There are no different maximum speeds throughout Alton. The fastest plan anyone in Alton can order from Verizon goes up to 300 Mbps, and all Alton customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Alton 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 below average compared to other Alton fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alton 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 Alton, IL
EarthLink fixed wireless coverage
About 25.15%, or 6,575 people, have EarthLink fixed wireless internet available to them in the city. The company covers the entire Alton 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 Alton.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Alton. Versus other fixed wireless providers in the area, EarthLink fixed wireless is below average. There are 3 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 43 Mbps.
Show all download speeds
- 24.3% up to 100.0 Mbps
- 74.1% up to 25.0 Mbps
- 1.6% up to 10.0 Mbps
EarthLink fixed wireless upload speeds
In Alton download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other Alton fixed wireless providers. EarthLink 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 Alton 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 7.1 Mbps.
Show all upload speeds
- 24.3% up to 20.0 Mbps
- 74.1% up to 3.0 Mbps
- 1.6% up to 1.0 Mbps
AT&T Fixed Wireless in Alton, IL
AT&T fixed wireless coverage
About 25.15%, or 6,575 people, have AT&T fixed wireless internet available to them in the city. The company covers the entire Alton 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 Alton.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Alton. Versus other fixed wireless providers in the area, AT&T fixed wireless is below average. There are 3 different maximum speeds throughout Alton. The fastest plan anyone in Alton 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 Alton customers is up to 43 Mbps.
Show all download speeds
- 24.3% up to 100.0 Mbps
- 74.1% up to 25.0 Mbps
- 1.6% up to 10.0 Mbps
AT&T fixed wireless upload speeds
In Alton download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other Alton fixed wireless providers. AT&T 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 Alton 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 7.1 Mbps.
Show all upload speeds
- 24.3% up to 20.0 Mbps
- 74.1% up to 3.0 Mbps
- 1.6% up to 1.0 Mbps
Nextlink Fixed Wireless in Alton, IL
Nextlink fixed wireless coverage
About 1.42%, or 372 people, have Nextlink fixed wireless internet available to them in the city. The company covers the northeast Alton area. Nextlink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Alton.
Nextlink fixed wireless download speeds
Nextlink is below average when comparing download speeds to all other internet providers in Alton. Versus other fixed wireless providers in the area, Nextlink fixed wireless is the fastest. There are 2 different maximum speeds throughout Alton. The fastest plan anyone in Alton can order from Nextlink goes up to 500 Mbps, the slowest package only goes up to 300 Mbps, and the city-wide average maximum speed for Alton customers is up to 367 Mbps.
Show all download speeds
- 33.6% up to 500.0 Mbps
- 66.4% up to 300.0 Mbps
Nextlink fixed wireless upload speeds
In Alton download speeds tend to be faster than than upload speeds for Nextlink fixed wireless. Compared to other ISPs, Nextlink is below average where upload speeds are concerned, and the fastest compared to other Alton fixed wireless providers. Nextlink 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 Alton is up to 200 Mbps. Some customers have slower plan choices, which only go up to 100 Mbps. On average, Nextlink customers can get speeds up to 134 Mbps.
Show all upload speeds
- 33.6% up to 200.0 Mbps
- 66.4% up to 100.0 Mbps
Alton Internet by Area
This information is most helpful to those looking for homes or considering moving to Alton or any of the areas nearby.
How does internet in Alton compare to the rest of Illinois?
Internet speeds in Alton are much faster versus the average speeds in Illinois: 2,791 Mbps in Illinois versus 3,925 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Illinois is 99.02% versus 99.75% in Alton.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Alton 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
- Godfrey, IL: less internet coverage, slower speeds
- Rosewood Heights, IL: more internet coverage, slower speeds
- Cottage Hills, IL: less internet coverage, slower speeds
- East Alton, IL: more internet coverage, slower speeds
- West Alton, MO: more internet coverage, slower speeds
- Wood River, IL: more internet coverage, faster speeds
- Bethalto, IL: more internet coverage, slower speeds
- Hartford, IL: more internet coverage, faster speeds
- Roxana, IL: more internet coverage, faster speeds
- Fosterburg, IL: more internet coverage, slower speeds
Cities with Similar Populations
- Golden Gate, FL: more internet coverage, slower speeds
- Imperial Beach, CA: more internet coverage, faster speeds
- Franklin, NC: less internet coverage, slower speeds
- Gibsonia, PA: more internet coverage, slower speeds
- Grayson, GA: more internet coverage, faster speeds
- South Laurel, MD: more internet coverage, slower speeds
- Harvest, AL: less internet coverage, faster speeds
- Hazelwood, MO: more internet coverage, slower speeds
- Plum, PA: more internet coverage, slower speeds
- Brawley, CA: more internet coverage, slower speeds