In 91331 there are 4 residential DSL providers covering 32.89% of the zip. The average home can get speeds up to 41 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 91331, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in 91331, CA please click below.
DSL Internet Service Providers in 91331
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 91331 are not shown.
91331 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 91331 is DSL internet available?
DSL Internet Availability Key
DSL is available in 32.89% of 91331. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is ConnectTo Communications. Call one of the companies with service in 91331 above to see who has service at your home.
How fast is DSL internet in 91331?
The map below shows maximum DSL internet speeds by area in 91331.
DSL Internet Speed Key
The average 91331 home can get up to 41 Mbps on their DSL internet plan. The fastest DSL download speed in the zip is 120 Mbps, which 5.14% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 21.41% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in 91331.
DSL internet speeds tend to be faster in the southwest parts of 91331, and slower in the east areas of the zip.
Is DSL the fastest internet I can get in 91331?
The fastest internet for you may vary based on where in 91331 you live. In general, fiber competes most often with DSL in the zip.
- Fiber is the fastest internet type for 96.41% of 91331 homes.
- Cable is fastest for 3.41% 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 91331 homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in 91331, along with details on where in 91331 and at what speeds.
Frontier Communications DSL in 91331, CA
Frontier DSL coverage
About 22.48%, or 22,653 people, have Frontier DSL internet available to them in the zip. The company covers the entire 91331 area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 91331.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in 91331. Versus other DSL providers in the area, Frontier DSL is the slowest. There are 3 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from Frontier goes up to 90 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 15 Mbps.
Show all download speeds
- 6.4% up to 90.0 Mbps
- 0.6% up to 45.0 Mbps
- 93.0% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In 91331 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 slowest compared to other 91331 DSL providers. Frontier 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 91331 is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 1.3 Mbps.
Show all upload speeds
- 6.4% up to 5.0 Mbps
- 0.6% up to 3.0 Mbps
- 93.0% up to 1.0 Mbps
AT&T DSL in 91331, CA
AT&T DSL coverage
About 5.39%, or 5,429 people, have AT&T DSL internet available to them in the zip. The company covers the south, southeast, and southwest 91331 area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 91331.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in 91331. Versus other DSL providers in the area, AT&T DSL is average. There are 5 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 71 Mbps.
Show all download speeds
- 52.9% up to 100.0 Mbps
- 3.0% up to 75.0 Mbps
- 24.8% up to 50.0 Mbps
- 7.8% up to 25.0 Mbps
- 11.5% up to 10.0 Mbps
AT&T DSL upload speeds
In 91331 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 average compared to other 91331 DSL providers. AT&T offers 4 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 91331 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 14 Mbps.
Show all upload speeds
- 56.0% up to 20.0 Mbps
- 24.8% up to 10.0 Mbps
- 7.8% up to 5.0 Mbps
- 11.5% up to 1.0 Mbps
EarthLink DSL in 91331, CA
EarthLink DSL coverage
About 5.39%, or 5,429 people, have EarthLink DSL internet available to them in the zip. The company covers the south, southeast, and southwest 91331 area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 91331.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in 91331. Versus other DSL providers in the area, EarthLink DSL is average. There are 5 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 71 Mbps.
Show all download speeds
- 52.9% up to 100.0 Mbps
- 3.0% up to 75.0 Mbps
- 24.8% up to 50.0 Mbps
- 7.8% up to 25.0 Mbps
- 11.5% up to 10.0 Mbps
EarthLink DSL upload speeds
In 91331 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 average compared to other 91331 DSL providers. EarthLink offers 4 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 91331 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 14 Mbps.
Show all upload speeds
- 56.0% up to 20.0 Mbps
- 24.8% up to 10.0 Mbps
- 7.8% up to 5.0 Mbps
- 11.5% up to 1.0 Mbps
ConnectTo Communications DSL in 91331, CA
ConnectTo Communications DSL coverage
About 5.14%, or 5,175 people, have ConnectTo Communications DSL internet available to them in the zip. The company covers the southwest, west, south, and north 91331 area. ConnectTo Communications is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 91331.
ConnectTo Communications DSL download speeds
ConnectTo Communications is below average when comparing download speeds to all other internet providers in 91331. Versus other DSL providers in the area, ConnectTo Communications DSL is the fastest. There are no different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from ConnectTo Communications goes up to 120 Mbps, and all 91331 customers can get this speed.
Show all download speeds
- 100.0% up to 120.0 Mbps
ConnectTo Communications DSL upload speeds
In 91331 download speeds tend to be faster than than upload speeds for ConnectTo Communications DSL. Compared to other ISPs, ConnectTo Communications is below average where upload speeds are concerned, and the fastest compared to other 91331 DSL providers. ConnectTo Communications offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 91331 is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
91331 DSL by Area
This information is most helpful to those looking for homes or considering moving to 91331 or any of the areas nearby.
How does DSL internet in 91331 compare to the rest of California?
DSL internet speeds in 91331 are much faster versus the average speeds in California: 0.00 Mbps in California versus 41 Mbps in the zip. The state has similar DSL availability compared to the zip. Average DSL coverage in California is 0.00% versus 32.89% in 91331.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around 91331 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
- 91345, CA: less DSL coverage, slower speeds
- 91340, CA: less DSL coverage, slower speeds
- 91402, CA: more DSL coverage, faster speeds
- 91343, CA: more DSL coverage, slower speeds
- 91342, CA: less DSL coverage, slower speeds
- 91352, CA: more DSL coverage, faster speeds
- 91605, CA: more DSL coverage, faster speeds
- 91405, CA: more DSL coverage, faster speeds
- 91344, CA: less DSL coverage, slower speeds
- 91606, CA: more DSL coverage, faster speeds
Zip Codes with Similar Populations
- 77084, TX: more DSL coverage, faster speeds
- 10025, NY: less DSL coverage, faster speeds
- 78245, TX: more DSL coverage, faster speeds
- 90650, CA: less DSL coverage, slower speeds
- 77433, TX: more DSL coverage, faster speeds
- 75052, TX: more DSL coverage, faster speeds
- 92503, CA: more DSL coverage, faster speeds
- 11230, NY: less DSL coverage, slower speeds
- 11206, NY: less DSL coverage, slower speeds
- 11219, NY: less DSL coverage, slower speeds