In O'fallon there are 7 residential Fiber providers covering 85.58% of the city. The average home can get speeds up to 3,406 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 O'fallon, MO.
To see availability maps for all providers including fiber, cable, DSL, and more in O'fallon, MO please click below.
O'fallon, MO Availability Maps
Fiber 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
Where in O'fallon is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 85.58% of O'fallon. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is i3 Broadband. Call one of the companies with service in O'fallon above to see who has service at your home.
How fast is fiber internet in O'fallon?
The map below shows maximum fiber internet speeds by area in O'fallon.
Fiber Internet Speed Key
The average O'fallon home can get up to 3,406 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 8,000 Mbps, which 19.26% 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 940 Mbps. See the internet provider details below for info about their speed and coverage in O'fallon.
Fiber internet speeds tend to be faster in the east parts of O'fallon, and slower in the northwest areas of the city.
Is fiber the fastest internet I can get in O'fallon?
The fastest internet for you may vary based on where in O'fallon you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 84.93% of O'fallon homes.
- Cable is fastest for 14.46% 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.
Fiber 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.
Gateway Fiber Fiber in O'fallon, MO
Gateway Fiber fiber coverage
About 52.32%, or 39,646 people, have Gateway Fiber fiber internet available to them in the city. The company covers the central, northeast, west, north, south, east, northwest, and southwest O'fallon area. Gateway Fiber is a large internet service provider internet service providers in the US, with internet service available in a majority of O'fallon.
Gateway Fiber fiber download speeds
Gateway Fiber is above average when comparing download speeds to all other internet providers in O'fallon. Versus other fiber providers in the area, Gateway Fiber fiber is below average. There are no different maximum speeds throughout O'fallon. The fastest plan anyone in O'fallon can order from Gateway Fiber goes up to 2,000 Mbps, and all O'fallon customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Gateway Fiber fiber upload speeds
In O'fallon download speeds tend to be equal to than upload speeds for Gateway Fiber fiber. Compared to other ISPs, Gateway Fiber is above average where upload speeds are concerned, and below average compared to other O'fallon fiber providers. Gateway Fiber offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'fallon is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
i3 Broadband Fiber in O'fallon, MO
i3 Broadband fiber coverage
About 19.26%, or 14,595 people, have i3 Broadband fiber internet available to them in the city. The company covers the southwest, east, south, southeast, west, and central 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
Brightspeed Fiber in O'fallon, MO
Brightspeed fiber coverage
About 14.33%, or 10,860 people, have Brightspeed fiber internet available to them in the city. The company covers the southwest, central, north, northwest, northeast, east, and west O'fallon area. Brightspeed 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.
Brightspeed fiber download speeds
Brightspeed is below average when comparing download speeds to all other internet providers in O'fallon. Versus other fiber providers in the area, Brightspeed fiber is the slowest. There are 2 different maximum speeds throughout O'fallon. The fastest plan anyone in O'fallon can order from Brightspeed goes up to 1,000 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for O'fallon customers is up to 995 Mbps.
Show all download speeds
- 91.7% up to 1,000.0 Mbps
- 8.3% up to 940.0 Mbps
Brightspeed fiber upload speeds
In O'fallon download speeds tend to be equal to than upload speeds for Brightspeed fiber. Compared to other ISPs, Brightspeed is below average where upload speeds are concerned, and below average compared to other O'fallon fiber providers. Brightspeed 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 940 Mbps. On average, Brightspeed customers can get speeds up to 995 Mbps.
Show all upload speeds
- 91.7% up to 1,000.0 Mbps
- 8.3% up to 940.0 Mbps
EarthLink Fiber in O'fallon, MO
EarthLink fiber coverage
About 7.90%, or 5,984 people, have EarthLink fiber internet available to them in the city. The company covers the southeast, south, and southwest O'fallon area. EarthLink 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.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in O'fallon. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout O'fallon. The fastest plan anyone in O'fallon 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 O'fallon customers is up to 4,204 Mbps.
Show all download speeds
- 80.1% up to 5,000.0 Mbps
- 19.9% 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 above average where upload speeds are concerned, and above average compared to other O'fallon 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 O'fallon 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 4,204 Mbps.
Show all upload speeds
- 80.1% up to 5,000.0 Mbps
- 19.9% up to 1,000.0 Mbps
AT&T Fiber in O'fallon, MO
AT&T fiber coverage
About 7.90%, or 5,984 people, have AT&T fiber internet available to them in the city. The company covers the southeast, south, and southwest 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 very small piece of O'fallon.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in O'fallon. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout O'fallon. The fastest plan anyone in O'fallon 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 O'fallon customers is up to 4,204 Mbps.
Show all download speeds
- 80.1% up to 5,000.0 Mbps
- 19.9% 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 above average where upload speeds are concerned, and above average compared to other O'fallon 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 O'fallon 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 4,204 Mbps.
Show all upload speeds
- 80.1% up to 5,000.0 Mbps
- 19.9% up to 1,000.0 Mbps
Spectrum Fiber in O'fallon, MO
Spectrum fiber coverage
About 3.32%, or 2,515 people, have Spectrum fiber internet available to them in the city. The company covers the southwest, central, and northeast 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 below average. 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 985 Mbps.
Show all upload speeds
- 97.1% up to 1,000.0 Mbps
- 2.9% up to 500.0 Mbps
Socket Fiber in O'fallon, MO
Socket fiber coverage
About 2.62%, or 1,986 people, have Socket fiber internet available to them in the city. The company covers the northeast and north O'fallon area. Socket is a large internet service provider internet service providers in the US, with internet service available in a very small piece of O'fallon.
Socket fiber download speeds
Socket is above average when comparing download speeds to all other internet providers in O'fallon. Versus other fiber providers in the area, Socket fiber is below average. There are no different maximum speeds throughout O'fallon. The fastest plan anyone in O'fallon can order from Socket goes up to 2,500 Mbps, and all O'fallon customers can get this speed.
Show all download speeds
- 100.0% up to 2,500.0 Mbps
Socket fiber upload speeds
In O'fallon download speeds tend to be equal to than upload speeds for Socket fiber. Compared to other ISPs, Socket is above average where upload speeds are concerned, and below average compared to other O'fallon fiber providers. Socket offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in O'fallon is up to 2,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,500.0 Mbps
O'fallon Fiber 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 fiber internet in O'fallon compare to the rest of Missouri?
Fiber internet speeds in O'fallon are much faster versus the average speeds in Missouri: 0.00 Mbps in Missouri versus 3,406 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Missouri is 0.00% versus 85.58% in O'fallon.
What zip codes have fiber internet?
Fiber 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 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
- Dardenne Prairie, MO: more fiber coverage, faster speeds
- Cottleville, MO: more fiber coverage, faster speeds
- Lake St. Louis, MO: more fiber coverage, slower speeds
- St. Paul, MO: less fiber coverage, slower speeds
- St. Peters, MO: more fiber coverage, faster speeds
- Josephville, MO: more fiber coverage, slower speeds
- Weldon Spring, MO: less fiber coverage, faster speeds
- Wentzville, MO: more fiber coverage, slower speeds
- Flint Hill, MO: more fiber coverage, slower speeds
- Defiance, MO: more fiber coverage, slower speeds
Cities with Similar Populations
- Oviedo, FL: less fiber coverage, faster speeds
- Olympia, WA: less fiber coverage, faster speeds
- Oceanside, CA: less fiber coverage, slower speeds
- Madera, CA: less fiber coverage, faster speeds
- Maryville, TN: less fiber coverage, faster speeds
- Marysville, WA: less fiber coverage, faster speeds
- Lynchburg, VA: less fiber coverage, faster speeds
- McKinney, TX: more fiber coverage, faster speeds
- Madison, WI: less fiber coverage, slower speeds
- Long Beach, CA: more fiber coverage, faster speeds