In 63439 there are 2 residential DSL providers covering 93.33% of the zip. The average home can get speeds up to 39 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 DSL internet providers in 63439, MO.
To see availability maps for all providers including fiber, cable, DSL, and more in 63439, MO please click below.
DSL Internet Service Providers in 63439
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 63439 are not shown.
63439 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 63439 is DSL internet available?

DSL Internet Availability Key
DSL is available in 93.33% of 63439. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Mark Twain. Call one of the companies with service in 63439 above to see who has service at your home.
How fast is DSL internet in 63439?
The map below shows maximum DSL internet speeds by area in 63439.

DSL Internet Speed Key
The average 63439 home can get up to 39 Mbps on their DSL internet plan. The fastest DSL download speed in the zip is 50 Mbps, which 51.11% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 5.00% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in 63439.
DSL internet speeds tend to be faster in the northeast parts of 63439, and slower in the east areas of the zip.
Is DSL the fastest internet I can get in 63439?
The fastest internet for you may vary based on where in 63439 you live. In general, fiber competes most often with DSL in the zip.
- Fiber is the fastest internet type for 100.00% of 63439 homes.
- Cable is fastest for less than 1% 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 63439 homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in 63439, along with details on where in 63439 and at what speeds.
Mark Twain DSL in 63439, MO

Mark Twain DSL coverage
About 89.44%, or 161 people, have Mark Twain DSL internet available to them in the zip. The company covers the entire 63439 area. Mark Twain is a large internet service provider internet service providers in the US, with internet service available in most of 63439.
Mark Twain DSL download speeds
Mark Twain is below average when comparing download speeds to all other internet providers in 63439. Versus other DSL providers in the area, Mark Twain DSL is the slowest. There are 3 different maximum speeds throughout 63439. The fastest plan anyone in 63439 can order from Mark Twain goes up to 50 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 63439 customers is up to 38 Mbps.
Show all download speeds
- 57.1% up to 50.0 Mbps
- 37.3% up to 25.0 Mbps
- 5.6% up to 10.0 Mbps
Mark Twain DSL upload speeds
In 63439 download speeds tend to be faster than than upload speeds for Mark Twain DSL. Compared to other ISPs, Mark Twain is below average where upload speeds are concerned, and the fastest compared to other 63439 DSL providers. Mark Twain offers 3 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 63439 is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Mark Twain customers can get speeds up to 6.9 Mbps.
Show all upload speeds
- 57.1% up to 10.0 Mbps
- 37.3% up to 3.0 Mbps
- 5.6% up to 1.0 Mbps
Brightspeed DSL in 63439, MO

Brightspeed DSL coverage
About 3.89%, or 7 people, have Brightspeed DSL internet available to them in the zip. The company covers the west 63439 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 63439.
Brightspeed DSL download speeds
Brightspeed is below average when comparing download speeds to all other internet providers in 63439. Versus other DSL providers in the area, Brightspeed DSL is the fastest. There are no different maximum speeds throughout 63439. The fastest plan anyone in 63439 can order from Brightspeed goes up to 40 Mbps, and all 63439 customers can get this speed.
Show all download speeds
- 100.0% up to 40.0 Mbps
Brightspeed DSL upload speeds
In 63439 download speeds tend to be faster than than upload speeds for Brightspeed DSL. Compared to other ISPs, Brightspeed is below average where upload speeds are concerned, and the slowest compared to other 63439 DSL providers. Brightspeed offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 63439 is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
63439 DSL by Area
This information is most helpful to those looking for homes or considering moving to 63439 or any of the areas nearby.
How does DSL internet in 63439 compare to the rest of Missouri?
DSL internet speeds in 63439 are much faster versus the average speeds in Missouri: 0.00 Mbps in Missouri versus 39 Mbps in the zip. The state has similar DSL availability compared to the zip. Average DSL coverage in Missouri is 0.00% versus 93.33% in 63439.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around 63439 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL 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
- 63463, MO: more DSL coverage, faster speeds
- 63443, MO: less DSL coverage, slower speeds
- 63469, MO: less DSL coverage, faster speeds
- 63468, MO: less DSL coverage, faster speeds
- 63456, MO: less DSL coverage, slower speeds
- 63450, MO: less DSL coverage, slower speeds
- 63461, MO: less DSL coverage, faster speeds
- 63437, MO: less DSL coverage, faster speeds
- 63431, MO: less DSL coverage, faster speeds
- 63401, MO: less DSL coverage, slower speeds
Zip Codes with Similar Populations
- 83283, ID: less DSL coverage, slower speeds
- 47596, IN: more DSL coverage, slower speeds
- 48139, MI: more DSL coverage, slower speeds
- 48411, MI: more DSL coverage, faster speeds
- 49960, MI: less DSL coverage, slower speeds
- 82227, WY: less DSL coverage, faster speeds
- 82434, WY: more DSL coverage, slower speeds
- 82945, WY: more DSL coverage, faster speeds
- 83227, ID: less DSL coverage, slower speeds
- 83302, ID: less DSL coverage, faster speeds


