In 63021 there are 4 residential Fiber providers covering 83.13% of the zip. The average home can get speeds up to 6,058 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 63021, MO.
To see availability maps for all providers including fiber, cable, DSL, and more in 63021, MO please click below.
Fiber Internet Service Providers in 63021
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 63021 are not shown.
63021 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 63021 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 83.13% of 63021. Areas in green have fiber 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 63021 above to see who has service at your home.
How fast is fiber internet in 63021?
The map below shows maximum fiber internet speeds by area in 63021.
Fiber Internet Speed Key
The average 63021 home can get up to 6,058 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 8,000 Mbps, which 36.91% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 5.69% 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 63021.
Fiber internet speeds tend to be faster in the north parts of 63021, and slower in the southwest areas of the zip.
Is fiber the fastest internet I can get in 63021?
The fastest internet for you may vary based on where in 63021 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 83.13% of 63021 homes.
- Cable is fastest for 16.62% of the zip.
- 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 63021 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 63021, along with details on where in 63021 and at what speeds.
EarthLink Fiber in 63021, MO
EarthLink fiber coverage
About 68.95%, or 39,180 people, have EarthLink fiber internet available to them in the zip. The company covers the entire 63021 area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of 63021.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in 63021. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout 63021. The fastest plan anyone in 63021 can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the zip-wide average maximum speed for 63021 customers is up to 4,646 Mbps.
Show all download speeds
- 91.2% up to 5,000.0 Mbps
- 8.8% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In 63021 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 63021 fiber providers. EarthLink offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 63021 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 4,646 Mbps.
Show all upload speeds
- 91.2% up to 5,000.0 Mbps
- 8.8% up to 1,000.0 Mbps
AT&T Fiber in 63021, MO
AT&T fiber coverage
About 68.95%, or 39,180 people, have AT&T fiber internet available to them in the zip. The company covers the entire 63021 area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of 63021.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in 63021. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout 63021. The fastest plan anyone in 63021 can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the zip-wide average maximum speed for 63021 customers is up to 4,646 Mbps.
Show all download speeds
- 91.2% up to 5,000.0 Mbps
- 8.8% up to 1,000.0 Mbps
AT&T fiber upload speeds
In 63021 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 63021 fiber providers. AT&T offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 63021 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 4,646 Mbps.
Show all upload speeds
- 91.2% up to 5,000.0 Mbps
- 8.8% up to 1,000.0 Mbps
i3 Broadband Fiber in 63021, MO
i3 Broadband fiber coverage
About 36.91%, or 20,973 people, have i3 Broadband fiber internet available to them in the zip. The company covers the central, north, south, northwest, west, northeast, east, and southeast 63021 area. i3 Broadband is a large internet service provider internet service providers in the US, with internet service available in some of 63021.
i3 Broadband fiber download speeds
i3 Broadband is the fastest when comparing download speeds to all other internet providers in 63021. Versus other fiber providers in the area, i3 Broadband fiber is the fastest. There are no different maximum speeds throughout 63021. The fastest plan anyone in 63021 can order from i3 Broadband goes up to 8,000 Mbps, and all 63021 customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
i3 Broadband fiber upload speeds
In 63021 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 63021 fiber providers. i3 Broadband offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 63021 is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
Spectrum Fiber in 63021, MO
Spectrum fiber coverage
About 2.64%, or 1,502 people, have Spectrum fiber internet available to them in the zip. The company covers the southwest, northeast, and east 63021 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 63021.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in 63021. Versus other fiber providers in the area, Spectrum fiber is the slowest. There are no different maximum speeds throughout 63021. The fastest plan anyone in 63021 can order from Spectrum goes up to 1,000 Mbps, and all 63021 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In 63021 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 63021 fiber providers. Spectrum offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 63021 is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 889 Mbps.
Show all upload speeds
- 88.5% up to 1,000.0 Mbps
- 11.5% up to 35.0 Mbps
63021 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 63021 or any of the areas nearby.
How does fiber internet in 63021 compare to the rest of Missouri?
Fiber internet speeds in 63021 are much faster versus the average speeds in Missouri: 0.00 Mbps in Missouri versus 6,058 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Missouri is 0.00% versus 83.13% in 63021.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 63021 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 zip codes?
Below are zip codes nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Zip Codes
- 63088, MO: less fiber coverage, slower speeds
- 63011, MO: less fiber coverage, faster speeds
- 63040, MO: less fiber coverage, slower speeds
- 63017, MO: less fiber coverage, faster speeds
- 63131, MO: less fiber coverage, slower speeds
- 63026, MO: less fiber coverage, slower speeds
- 63005, MO: less fiber coverage, slower speeds
- 63122, MO: more fiber coverage, slower speeds
- 63038, MO: less fiber coverage, slower speeds
- 63049, MO: less fiber coverage, slower speeds
Zip Codes with Similar Populations
- 21061, MD: more fiber coverage, slower speeds
- 92646, CA: more fiber coverage, faster speeds
- 92780, CA: less fiber coverage, slower speeds
- 93308, CA: less fiber coverage, slower speeds
- 93436, CA: less fiber coverage, slower speeds
- 34741, FL: less fiber coverage, faster speeds
- 34746, FL: less fiber coverage, slower speeds
- 45140, OH: more fiber coverage, slower speeds
- 27616, NC: more fiber coverage, faster speeds
- 27284, NC: more fiber coverage, slower speeds