In 63303 there are 4 residential Fiber providers covering 79.42% of the zip. The average home can get speeds up to 5,363 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 63303, MO.
To see availability maps for all providers including fiber, cable, DSL, and more in 63303, MO please click below.
Fiber Internet Service Providers in 63303
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 63303 are not shown.
63303 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 63303 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 79.42% of 63303. 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 63303 above to see who has service at your home.
How fast is fiber internet in 63303?
The map below shows maximum fiber internet speeds by area in 63303.
Fiber Internet Speed Key
The average 63303 home can get up to 5,363 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 8,000 Mbps, which 13.55% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 2.85% 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 63303.
Fiber internet speeds tend to be faster in the west parts of 63303, and slower in the south areas of the zip.
Is fiber the fastest internet I can get in 63303?
The fastest internet for you may vary based on where in 63303 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 79.42% of 63303 homes.
- Cable is fastest for 20.11% 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 63303 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 63303, along with details on where in 63303 and at what speeds.
EarthLink Fiber in 63303, MO
EarthLink fiber coverage
About 75.58%, or 35,680 people, have EarthLink fiber internet available to them in the zip. The company covers the entire 63303 area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of 63303.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in 63303. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout 63303. The fastest plan anyone in 63303 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 63303 customers is up to 4,887 Mbps.
Show all download speeds
- 97.2% up to 5,000.0 Mbps
- 2.8% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In 63303 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 63303 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 63303 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 4,887 Mbps.
Show all upload speeds
- 97.2% up to 5,000.0 Mbps
- 2.8% up to 1,000.0 Mbps
AT&T Fiber in 63303, MO
AT&T fiber coverage
About 75.58%, or 35,680 people, have AT&T fiber internet available to them in the zip. The company covers the entire 63303 area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of 63303.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in 63303. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout 63303. The fastest plan anyone in 63303 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 63303 customers is up to 4,887 Mbps.
Show all download speeds
- 97.2% up to 5,000.0 Mbps
- 2.8% up to 1,000.0 Mbps
AT&T fiber upload speeds
In 63303 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 63303 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 63303 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 4,887 Mbps.
Show all upload speeds
- 97.2% up to 5,000.0 Mbps
- 2.8% up to 1,000.0 Mbps
i3 Broadband Fiber in 63303, MO
i3 Broadband fiber coverage
About 13.55%, or 6,396 people, have i3 Broadband fiber internet available to them in the zip. The company covers the northwest, west, and north 63303 area. i3 Broadband is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 63303.
i3 Broadband fiber download speeds
i3 Broadband is the fastest when comparing download speeds to all other internet providers in 63303. Versus other fiber providers in the area, i3 Broadband fiber is the fastest. There are no different maximum speeds throughout 63303. The fastest plan anyone in 63303 can order from i3 Broadband goes up to 8,000 Mbps, and all 63303 customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
i3 Broadband fiber upload speeds
In 63303 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 63303 fiber providers. i3 Broadband offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 63303 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 63303, MO
Spectrum fiber coverage
About 3.12%, or 1,474 people, have Spectrum fiber internet available to them in the zip. The company covers the central and east 63303 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 63303.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in 63303. Versus other fiber providers in the area, Spectrum fiber is the slowest. There are no different maximum speeds throughout 63303. The fastest plan anyone in 63303 can order from Spectrum goes up to 1,000 Mbps, and all 63303 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In 63303 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 63303 fiber providers. Spectrum offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 63303 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
63303 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 63303 or any of the areas nearby.
How does fiber internet in 63303 compare to the rest of Missouri?
Fiber internet speeds in 63303 are much faster versus the average speeds in Missouri: 0.00 Mbps in Missouri versus 5,363 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Missouri is 0.00% versus 79.42% in 63303.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 63303 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
- 63301, MO: more fiber coverage, faster speeds
- 63376, MO: more fiber coverage, faster speeds
- 63304, MO: more fiber coverage, faster speeds
- 63043, MO: more fiber coverage, faster speeds
- 63338, MO: more fiber coverage, faster speeds
- 63044, MO: more fiber coverage, faster speeds
- 63146, MO: less fiber coverage, slower speeds
- 63017, MO: less fiber coverage, faster speeds
- 63141, MO: less fiber coverage, slower speeds
- 63074, MO: more fiber coverage, slower speeds
Zip Codes with Similar Populations
- 80123, CO: less fiber coverage, faster speeds
- 73072, OK: more fiber coverage, slower speeds
- 73505, OK: more fiber coverage, faster speeds
- 75006, TX: more fiber coverage, faster speeds
- 75023, TX: more fiber coverage, faster speeds
- 75028, TX: more fiber coverage, faster speeds
- 75044, TX: more fiber coverage, faster speeds
- 75063, TX: more fiber coverage, slower speeds
- 75072, TX: more fiber coverage, slower speeds
- 76502, TX: less fiber coverage, slower speeds