In Thermal there is 1 residential DSL provider covering 54.80% of the city. The average home can get speeds up to 35 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 Thermal, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Thermal, CA please click below.
DSL Internet Service Provider in Thermal
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 Thermal are not shown.
Thermal 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 Thermal is DSL internet available?
DSL Internet Availability Key
DSL is available in 54.80% of Thermal. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Frontier. Call one of the companies with service in Thermal above to see who has service at your home.
How fast is DSL internet in Thermal?
The map below shows maximum DSL internet speeds by area in Thermal.
DSL Internet Speed Key
The average Thermal home can get up to 35 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 115 Mbps, which 5.03% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 36.20% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Thermal.
DSL internet speeds tend to be faster in the central parts of Thermal, and slower in the southeast areas of the city.
Is DSL the fastest internet I can get in Thermal?
The fastest internet for you may vary based on where in Thermal you live. In general, fixed wireless competes most often with DSL in the city.
- Fiber is the fastest internet type for 35.85% of Thermal homes.
- Cable is fastest for 2.89% of the city.
- DSL is fastest for 2.16%.
- Fixed wireless is fastest for 55.54%.
- Satellite internet may be the only option for 3.57% of Thermal homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Thermal, along with details on where in Thermal and at what speeds.
Frontier Communications DSL in Thermal, CA
Frontier DSL coverage
About 54.80%, or 4,667 people, have Frontier DSL internet available to them in the city. The company covers the entire Thermal area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Thermal.
Frontier Communications DSL download speeds
Frontier is below average when comparing download speeds to all other internet providers in Thermal. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 5 different maximum speeds throughout Thermal. The fastest plan anyone in Thermal can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Thermal customers is up to 35 Mbps.
Show all download speeds
- 9.2% up to 115.0 Mbps
- 5.2% up to 90.0 Mbps
- 17.5% up to 70.0 Mbps
- 2.1% up to 45.0 Mbps
- 66.1% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Thermal download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is the slowest where upload speeds are concerned, and the fastest compared to other Thermal DSL providers. Frontier offers 5 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 Thermal is up to 12 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 2.3 Mbps.
Show all upload speeds
- 2.5% up to 12.0 Mbps
- 6.7% up to 7.0 Mbps
- 5.2% up to 5.0 Mbps
- 19.6% up to 3.0 Mbps
- 66.1% up to 1.0 Mbps
Thermal DSL by Area
This information is most helpful to those looking for homes or considering moving to Thermal or any of the areas nearby.
How does DSL internet in Thermal compare to the rest of California?
DSL internet speeds in Thermal are much faster versus the average speeds in California: 0.00 Mbps in California versus 35 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in California is 0.00% versus 54.80% in Thermal.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Thermal 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
- Oasis, CA: less DSL coverage, faster speeds
- Mecca, CA: more DSL coverage, faster speeds
- Vista Santa Rosa, CA: less DSL coverage, slower speeds
- Valerie, CA: more DSL coverage, slower speeds
- Coachella, CA: less DSL coverage, slower speeds
- North Shore, CA: less DSL coverage, slower speeds
- La Quinta, CA: less DSL coverage, faster speeds
- Pinyon Pines, CA: more DSL coverage, slower speeds
- Mountain Center, CA: more DSL coverage, faster speeds
- Idyllwild, CA: more DSL coverage, faster speeds
Cities with Similar Populations
- Sayre, PA: less DSL coverage, slower speeds
- Rutledge, TN: more DSL coverage, slower speeds
- Salado, TX: more DSL coverage, faster speeds
- Salem, AL: less DSL coverage, slower speeds
- Salem, MO: more DSL coverage, faster speeds
- Salida, CO: more DSL coverage, slower speeds
- Sarver, PA: more DSL coverage, faster speeds
- Savannah, MO: more DSL coverage, slower speeds
- Round Lake Park, IL: more DSL coverage, faster speeds
- Scottsburg, IN: more DSL coverage, slower speeds