In Katy there are 3 residential DSL providers covering 49.14% of the city. The average home can get speeds up to 70 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 Katy, TX.
To see availability maps for all providers including fiber, cable, DSL, and more in Katy, TX please click below.
DSL Internet Service Providers in Katy
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 Katy are not shown.
Katy 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 Katy is DSL internet available?
DSL Internet Availability Key
DSL is available in 49.14% of Katy. Areas in green have DSL 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 Katy above to see who has service at your home.
How fast is DSL internet in Katy?
The map below shows maximum DSL internet speeds by area in Katy.
DSL Internet Speed Key
The average Katy home can get up to 70 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 500 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 8.08% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Katy.
DSL internet speeds tend to be faster in the northwest parts of Katy, and slower in the south areas of the city.
Is DSL the fastest internet I can get in Katy?
The fastest internet for you may vary based on where in Katy you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 94.72% of Katy homes.
- Cable is fastest for 5.08% 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 Katy homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Katy, along with details on where in Katy and at what speeds.
AT&T DSL in Katy, TX
AT&T DSL coverage
About 36.61%, or 133,119 people, have AT&T DSL internet available to them in the city. The company covers the northeast, east, southeast, south, north, southwest, and central Katy area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Katy.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Katy. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout Katy. The fastest plan anyone in Katy 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 Katy customers is up to 71 Mbps.
Show all download speeds
- 45.1% up to 100.0 Mbps
- 15.8% up to 75.0 Mbps
- 22.6% up to 50.0 Mbps
- 9.9% up to 25.0 Mbps
- 6.6% up to 10.0 Mbps
AT&T DSL upload speeds
In Katy 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 Katy 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 Katy 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 15 Mbps.
Show all upload speeds
- 60.9% up to 20.0 Mbps
- 22.6% up to 10.0 Mbps
- 9.9% up to 5.0 Mbps
- 6.6% up to 1.0 Mbps
EarthLink DSL in Katy, TX
EarthLink DSL coverage
About 36.61%, or 133,119 people, have EarthLink DSL internet available to them in the city. The company covers the northeast, east, southeast, south, north, southwest, and central Katy area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Katy.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Katy. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout Katy. The fastest plan anyone in Katy 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 Katy customers is up to 71 Mbps.
Show all download speeds
- 45.1% up to 100.0 Mbps
- 15.8% up to 75.0 Mbps
- 22.6% up to 50.0 Mbps
- 9.9% up to 25.0 Mbps
- 6.6% up to 10.0 Mbps
EarthLink DSL upload speeds
In Katy 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 Katy 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 Katy 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 15 Mbps.
Show all upload speeds
- 60.9% up to 20.0 Mbps
- 22.6% up to 10.0 Mbps
- 9.9% up to 5.0 Mbps
- 6.6% up to 1.0 Mbps
Fidium Fiber DSL in Katy, TX
Fidium DSL coverage
About 12.53%, or 45,543 people, have Fidium DSL internet available to them in the city. The company covers the central, northwest, southwest, south, west, and north Katy area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Katy.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Katy. Versus other DSL providers in the area, Fidium DSL is the slowest. There are 12 different maximum speeds throughout Katy. The fastest plan anyone in Katy can order from Fidium goes up to 500 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Katy customers is up to 67 Mbps.
Show all download speeds
- 3.6% up to 500.0 Mbps
- 1.7% up to 300.0 Mbps
- 0.2% up to 200.0 Mbps
- 0.1% up to 150.0 Mbps
- 21.9% up to 100.0 Mbps
- 3.1% up to 90.0 Mbps
- 4.8% up to 80.0 Mbps
- 4.7% up to 70.0 Mbps
- 6.6% up to 60.0 Mbps
- 5.3% up to 50.0 Mbps
- 2.9% up to 30.0 Mbps
- 45.2% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Katy download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is the slowest where upload speeds are concerned, and the slowest compared to other Katy DSL providers. Fidium offers 8 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 Katy is up to 75 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 7.9 Mbps.
Show all upload speeds
- 3.6% up to 75.0 Mbps
- 1.7% up to 70.0 Mbps
- 0.2% up to 40.0 Mbps
- 0.1% up to 30.0 Mbps
- 21.9% up to 10.0 Mbps
- 24.4% up to 5.0 Mbps
- 2.9% up to 3.0 Mbps
- 45.2% up to 1.0 Mbps
Katy DSL by Area
This information is most helpful to those looking for homes or considering moving to Katy or any of the areas nearby.
How does DSL internet in Katy compare to the rest of Texas?
DSL internet speeds in Katy are much faster versus the average speeds in Texas: 0.00 Mbps in Texas versus 70 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Texas is 0.00% versus 49.14% in Katy.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Katy 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 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
- Cinco Ranch, TX: less DSL coverage, slower speeds
- Fulshear, TX: less DSL coverage, slower speeds
- Mission Bend, TX: more DSL coverage, faster speeds
- Brookshire, TX: less DSL coverage, faster speeds
- Sunny Side, TX: more DSL coverage, faster speeds
- Richmond, TX: more DSL coverage, faster speeds
- Pecan Grove, TX: more DSL coverage, faster speeds
- Weston Lakes, TX: more DSL coverage, slower speeds
- Pattison, TX: more DSL coverage, faster speeds
- Jersey Village, TX: more DSL coverage, slower speeds
Cities with Similar Populations
- New Haven, CT: more DSL coverage, slower speeds
- Myrtle Beach, SC: less DSL coverage, slower speeds
- Morgantown, WV: less DSL coverage, slower speeds
- Montgomery, AL: more DSL coverage, slower speeds
- New York, NY: less DSL coverage, faster speeds
- Muncie, IN: more DSL coverage, slower speeds
- New Orleans, LA: more DSL coverage, slower speeds
- Norman, OK: more DSL coverage, faster speeds
- Nashville, TN: more DSL coverage, slower speeds
- Mount Vernon, NY: less DSL coverage, slower speeds