In O'Fallon there are 9 residential internet providers covering 99.67% of the city. The average home can get speeds up to 2,551 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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9 Internet Service Providers in O'Fallon
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 O'Fallon are not shown.
O'Fallon 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 O'Fallon
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 99.67% of O'Fallon. 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 i3 Broadband. Now you can call companies in O'Fallon with more confidence that they might be available.
How fast are internet speeds in O'Fallon?
The map below shows maximum internet speeds by area in O'Fallon.
1000 Mbps+
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The average O'Fallon home can get up to 2,551 Mbps on their internet plan. For most people, the fastest download speed in the city is 8,000 Mbps, which 22.06% 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 O'Fallon.
Internet speeds tend to be faster in the southwest parts of O'Fallon, and slower in the north areas of the city.
What type of internet should I choose in O'Fallon?
The fastest internet for you may vary based on where in O'Fallon you live. If speed is your main concern, cable will be the fastest internet in the city.
- Fiber is the fastest internet type for 39.08% of O'Fallon homes.
- Cable is fastest for 59.94% 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 O'Fallon homes.
Internet Market Health in O'Fallon
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The map shows how competitive the O'Fallon 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 O'Fallon based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.6 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.3 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 6.5 (very healthy)
Overall, competition is very healthy.
O'Fallon 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, O'Fallon 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. O'Fallon 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, O'Fallon is doing quite well.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in O'Fallon, along with details on where in O'Fallon and at what speeds.
Spectrum Cable in O'Fallon, IL
Spectrum cable coverage
About 98.53%, or 30,660 people, have Spectrum cable internet available to them in the city. The company covers the entire O'Fallon area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of O'Fallon.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other cable providers in the area, Spectrum cable is the fastest. There are no different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from Spectrum goes up to 1,000 Mbps, and all O'Fallon customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In O'Fallon 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 O'Fallon cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'Fallon is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
AT&T DSL in O'Fallon, IL
AT&T DSL coverage
About 88.67%, or 27,590 people, have AT&T DSL internet available to them in the city. The company covers the entire O'Fallon area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of O'Fallon.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon 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 O'Fallon customers is up to 76 Mbps.
Show all download speeds
- 53.2% up to 100.0 Mbps
- 11.3% up to 75.0 Mbps
- 23.9% up to 50.0 Mbps
- 10.4% up to 25.0 Mbps
- 1.2% up to 10.0 Mbps
AT&T DSL upload speeds
In O'Fallon 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 O'Fallon 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 O'Fallon 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 16 Mbps.
Show all upload speeds
- 64.6% up to 20.0 Mbps
- 23.9% up to 10.0 Mbps
- 10.4% up to 5.0 Mbps
- 1.2% up to 1.0 Mbps
EarthLink DSL in O'Fallon, IL
EarthLink DSL coverage
About 88.67%, or 27,590 people, have EarthLink DSL internet available to them in the city. The company covers the entire O'Fallon area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of O'Fallon.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon 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 O'Fallon customers is up to 76 Mbps.
Show all download speeds
- 53.2% up to 100.0 Mbps
- 11.3% up to 75.0 Mbps
- 23.9% up to 50.0 Mbps
- 10.4% up to 25.0 Mbps
- 1.2% up to 10.0 Mbps
EarthLink DSL upload speeds
In O'Fallon 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 O'Fallon 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 O'Fallon 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 16 Mbps.
Show all upload speeds
- 64.6% up to 20.0 Mbps
- 23.9% up to 10.0 Mbps
- 10.4% up to 5.0 Mbps
- 1.2% up to 1.0 Mbps
i3 Broadband Fiber in O'Fallon, IL
i3 Broadband fiber coverage
About 22.06%, or 6,863 people, have i3 Broadband fiber internet available to them in the city. The company covers the southwest, west, central, and south O'Fallon area. i3 Broadband is a large internet service provider internet service providers in the US, with internet service available in a small portion of O'Fallon.
i3 Broadband fiber download speeds
i3 Broadband is the fastest when comparing download speeds to all other internet providers in O'Fallon. Versus other fiber providers in the area, i3 Broadband fiber is the fastest. There are no different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from i3 Broadband goes up to 8,000 Mbps, and all O'Fallon customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
i3 Broadband fiber upload speeds
In O'Fallon download speeds tend to be equal to than upload speeds for i3 Broadband fiber. Compared to other ISPs, i3 Broadband is the fastest where upload speeds are concerned, and the fastest compared to other O'Fallon fiber providers. i3 Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'Fallon is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
EarthLink Fiber in O'Fallon, IL
EarthLink fiber coverage
About 19.36%, or 6,023 people, have EarthLink fiber internet available to them in the city. The company covers the northwest, north, southwest, west, northeast, south, and east O'Fallon 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 O'Fallon.
EarthLink fiber download speeds
EarthLink is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are no different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from EarthLink goes up to 1,000 Mbps, and all O'Fallon customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In O'Fallon download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other O'Fallon fiber providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'Fallon is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
AT&T Fiber in O'Fallon, IL
AT&T fiber coverage
About 19.36%, or 6,023 people, have AT&T fiber internet available to them in the city. The company covers the northwest, north, southwest, west, northeast, south, and east O'Fallon 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 O'Fallon.
AT&T fiber download speeds
AT&T is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other fiber providers in the area, AT&T fiber is one of the slowest. There are no different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from AT&T goes up to 1,000 Mbps, and all O'Fallon customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
AT&T fiber upload speeds
In O'Fallon download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other O'Fallon fiber providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'Fallon is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Spectrum Fiber in O'Fallon, IL
Spectrum fiber coverage
About 2.52%, or 783 people, have Spectrum fiber internet available to them in the city. The company covers the northwest and southwest O'Fallon 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 O'Fallon.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other fiber providers in the area, Spectrum fiber is one of the slowest. There are no different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from Spectrum goes up to 1,000 Mbps, and all O'Fallon customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In O'Fallon download speeds tend to be faster than 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 O'Fallon fiber providers. Spectrum 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 O'Fallon is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 500 Mbps. On average, Spectrum customers can get speeds up to 967 Mbps.
Show all upload speeds
- 93.4% up to 1,000.0 Mbps
- 6.6% up to 500.0 Mbps
T-Mobile Home Internet Fixed Wireless in O'Fallon, IL
T-Mobile Home Internet fixed wireless coverage
About 98.77%, or 30,734 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire O'Fallon 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 O'Fallon.
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 O'Fallon. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon 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 O'Fallon customers is up to 62 Mbps.
Show all download speeds
- 49.1% up to 100.0 Mbps
- 50.9% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In O'Fallon 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 average compared to other O'Fallon 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 O'Fallon 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 11 Mbps.
Show all upload speeds
- 49.1% up to 20.0 Mbps
- 50.9% up to 3.0 Mbps
Wisper Internet Fixed Wireless in O'Fallon, IL
Wisper Internet fixed wireless coverage
About 78.48%, or 24,419 people, have Wisper Internet fixed wireless internet available to them in the city. The company covers the entire O'Fallon area. Wisper Internet is a large internet service provider internet service providers in the US, with internet service available in much of O'Fallon.
Wisper Internet fixed wireless download speeds
Wisper Internet is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other fixed wireless providers in the area, Wisper Internet fixed wireless is below average. There are 4 different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from Wisper Internet goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for O'Fallon customers is up to 75 Mbps.
Show all download speeds
- 65.4% up to 100.0 Mbps
- 6.5% up to 50.0 Mbps
- 22.6% up to 25.0 Mbps
- 5.5% up to 10.0 Mbps
Wisper Internet fixed wireless upload speeds
In O'Fallon 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 above average compared to other O'Fallon 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 O'Fallon is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Wisper Internet customers can get speeds up to 14 Mbps.
Show all upload speeds
- 65.4% up to 20.0 Mbps
- 6.5% up to 5.0 Mbps
- 22.6% up to 3.0 Mbps
- 5.5% up to 1.0 Mbps
Verizon Fixed Wireless in O'Fallon, IL
Verizon fixed wireless coverage
About 58.01%, or 18,049 people, have Verizon fixed wireless internet available to them in the city. The company covers the entire O'Fallon area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of O'Fallon.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in O'Fallon. Versus other fixed wireless providers in the area, Verizon fixed wireless is the fastest. There are no different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from Verizon goes up to 300 Mbps, and all O'Fallon customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In O'Fallon 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 the fastest compared to other O'Fallon fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'Fallon 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 O'Fallon, IL
EarthLink fixed wireless coverage
About 40.29%, or 12,536 people, have EarthLink fixed wireless internet available to them in the city. The company covers the entire O'Fallon area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of O'Fallon.
EarthLink fixed wireless download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in O'Fallon. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are 2 different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for O'Fallon customers is up to 37 Mbps.
Show all download speeds
- 15.7% up to 100.0 Mbps
- 84.3% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In O'Fallon download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the slowest compared to other O'Fallon fixed wireless 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 O'Fallon is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 5.7 Mbps.
Show all upload speeds
- 15.7% up to 20.0 Mbps
- 84.3% up to 3.0 Mbps
AT&T Fixed Wireless in O'Fallon, IL
AT&T fixed wireless coverage
About 40.29%, or 12,536 people, have AT&T fixed wireless internet available to them in the city. The company covers the entire O'Fallon area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of O'Fallon.
AT&T fixed wireless download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in O'Fallon. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are 2 different maximum speeds throughout O'Fallon. The fastest plan anyone in O'Fallon can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for O'Fallon customers is up to 37 Mbps.
Show all download speeds
- 15.7% up to 100.0 Mbps
- 84.3% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In O'Fallon download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the slowest compared to other O'Fallon fixed wireless 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 O'Fallon is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 5.7 Mbps.
Show all upload speeds
- 15.7% up to 20.0 Mbps
- 84.3% up to 3.0 Mbps
O'Fallon Internet by Area
This information is most helpful to those looking for homes or considering moving to O'Fallon or any of the areas nearby.
How does internet in O'Fallon compare to the rest of Illinois?
Internet speeds in O'Fallon are slower versus the average speeds in Illinois: 2,791 Mbps in Illinois versus 2,551 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Illinois is 99.02% versus 99.67% in O'Fallon.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around O'Fallon 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
- Shiloh, IL: less internet coverage, faster speeds
- Fairview Heights, IL: more internet coverage, faster speeds
- Lebanon, IL: less internet coverage, slower speeds
- Swansea, IL: less internet coverage, faster speeds
- Scott AFB, IL: less internet coverage, slower speeds
- Caseyville, IL: more internet coverage, faster speeds
- Lumaghi Heights, IL: more internet coverage, faster speeds
- Scott Air Force Base, IL: more internet coverage, slower speeds
- Belleville, IL: less internet coverage, faster speeds
- Collinsville, IL: more internet coverage, faster speeds
Cities with Similar Populations
- Fountain, CO: more internet coverage, slower speeds
- Dawsonville, GA: more internet coverage, slower speeds
- Denison, TX: less internet coverage, faster speeds
- Dinuba, CA: more internet coverage, faster speeds
- Drexel Hill, PA: more internet coverage, slower speeds
- East Palo Alto, CA: more internet coverage, faster speeds
- Elgin, SC: more internet coverage, faster speeds
- Elkhorn, NE: more internet coverage, faster speeds
- Elmira, NY: less internet coverage, slower speeds
- Endicott, NY: more internet coverage, faster speeds