In 91331 there are 10 residential internet providers covering 99.98% of the zip. The average home can get speeds up to 5,027 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.
Jump to Availability Maps
10 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
Availability maps for all providers in 91331
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
Please note some providers will take longer to load than others
Internet service is available in 99.98% of 91331. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Frontier. Now you can call companies in 91331 with more confidence that they might be available.
How fast are internet speeds in 91331?
The map below shows maximum internet speeds by area in 91331.
Internet Speed Key
The average 91331 home can get up to 5,027 Mbps on their internet plan. For most people, the fastest download speed in the zip is 7,000 Mbps, which 8.52% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 25 Mbps. See the internet provider details below for info about their speed and coverage in 91331.
Internet speeds tend to be faster in the southwest parts of 91331, and slower in the northeast areas of the zip.
What type of internet should I choose in 91331?
The fastest internet for you may vary based on where in 91331 you live. If speed is your main concern, fiber will be the fastest internet 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.
Internet Market Health in 91331
Internet Competition Key
The map shows how competitive the 91331 internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in 91331 based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.0 (healthy)
- Average types of service (fiber, cable, DSL, etc): 3.3 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 5.8 (healthy)
Overall, competition is healthy.
91331 internet customers have the ability to buy internet service from 2 to 10 different providers, depending on where they live. For different types of service, 91331 homes have between 1 and 4 options. The type(s) of service available are cable, fixed wireless, fiber, and dsl, though these may vary depending on the region within the zip.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. 91331 internet customers who want faster speeds have between 2 and 10 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, 91331 is doing better than most.
TV & Internet 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.
Spectrum Cable in 91331, CA
Spectrum cable coverage
About 99.92%, or 100,668 people, have Spectrum cable internet available to them in the zip. The company covers the entire 91331 area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of 91331.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in 91331. Versus other cable providers in the area, Spectrum cable is the fastest. There are no different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from Spectrum goes up to 1,000 Mbps, and all 91331 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In 91331 download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the fastest compared to other 91331 cable providers. Spectrum offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 91331 is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Frontier Communications Fiber in 91331, CA
Frontier fiber coverage
About 91.97%, or 92,663 people, have Frontier fiber 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 most of 91331.
Frontier Communications fiber download speeds
Frontier is the fastest when comparing download speeds to all other internet providers in 91331. Versus other fiber providers in the area, Frontier fiber is the fastest. There are 2 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from Frontier goes up to 7,000 Mbps, the slowest package only goes up to 5,000 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 5,185 Mbps.
Show all download speeds
- 9.3% up to 7,000.0 Mbps
- 90.7% up to 5,000.0 Mbps
Frontier Communications fiber upload speeds
In 91331 download speeds tend to be equal to than upload speeds for Frontier fiber. Compared to other ISPs, Frontier is the fastest where upload speeds are concerned, and the fastest compared to other 91331 fiber providers. Frontier 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 91331 is up to 7,000 Mbps. Some customers have slower plan choices, which only go up to 5,000 Mbps. On average, Frontier customers can get speeds up to 5,185 Mbps.
Show all upload speeds
- 9.3% up to 7,000.0 Mbps
- 90.7% up to 5,000.0 Mbps
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
EarthLink Fiber in 91331, CA
EarthLink fiber coverage
About 5.84%, or 5,882 people, have EarthLink fiber 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 fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in 91331. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are no different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from EarthLink goes up to 5,000 Mbps, and all 91331 customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
EarthLink fiber upload speeds
In 91331 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 one of the slowest compared to other 91331 fiber providers. EarthLink offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 91331 is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
AT&T Fiber in 91331, CA
AT&T fiber coverage
About 5.84%, or 5,882 people, have AT&T fiber 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 fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in 91331. Versus other fiber providers in the area, AT&T fiber is one of the slowest. There are no different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from AT&T goes up to 5,000 Mbps, and all 91331 customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
AT&T fiber upload speeds
In 91331 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 one of the slowest compared to other 91331 fiber providers. AT&T offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 91331 is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 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
T-Mobile Home Internet Fixed Wireless in 91331, CA
T-Mobile Home Internet fixed wireless coverage
About 98.33%, or 99,072 people, have T-Mobile Home Internet fixed wireless internet available to them in the zip. The company covers the entire 91331 area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in most of 91331.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in 91331. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are 2 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 73 Mbps.
Show all download speeds
- 63.9% up to 100.0 Mbps
- 36.1% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In 91331 download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and below average compared to other 91331 fixed wireless providers. T-Mobile Home Internet 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 91331 is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 14 Mbps.
Show all upload speeds
- 63.9% up to 20.0 Mbps
- 36.1% up to 3.0 Mbps
EarthLink Fixed Wireless in 91331, CA
EarthLink fixed wireless coverage
About 91.15%, or 91,835 people, have EarthLink fixed wireless internet available to them in the zip. The company covers the entire 91331 area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of 91331.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in 91331. Versus other fixed wireless providers in the area, EarthLink fixed wireless is one of the slowest. There are 2 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 25 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 49 Mbps.
Show all download speeds
- 31.6% up to 100.0 Mbps
- 68.4% up to 25.0 Mbps
EarthLink fixed wireless upload speeds
In 91331 download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other 91331 fixed wireless 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 91331 is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, EarthLink customers can get speeds up to 8.4 Mbps.
Show all upload speeds
- 31.6% up to 20.0 Mbps
- 68.4% up to 3.0 Mbps
AT&T Fixed Wireless in 91331, CA
AT&T fixed wireless coverage
About 91.15%, or 91,835 people, have AT&T fixed wireless internet available to them in the zip. The company covers the entire 91331 area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of 91331.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in 91331. Versus other fixed wireless providers in the area, AT&T fixed wireless is one of the slowest. There are 2 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 25 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 49 Mbps.
Show all download speeds
- 31.6% up to 100.0 Mbps
- 68.4% up to 25.0 Mbps
AT&T fixed wireless upload speeds
In 91331 download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the slowest compared to other 91331 fixed wireless 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 91331 is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, AT&T customers can get speeds up to 8.4 Mbps.
Show all upload speeds
- 31.6% up to 20.0 Mbps
- 68.4% up to 3.0 Mbps
Verizon Fixed Wireless in 91331, CA
Verizon fixed wireless coverage
About 73.98%, or 74,539 people, have Verizon fixed wireless internet available to them in the zip. The company covers the entire 91331 area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in much of 91331.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in 91331. Versus other fixed wireless providers in the area, Verizon fixed wireless is above average. There are 2 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from Verizon goes up to 1,000 Mbps, the slowest package only goes up to 300 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 318 Mbps.
Show all download speeds
- 2.5% up to 1,000.0 Mbps
- 97.5% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In 91331 download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and below average compared to other 91331 fixed wireless providers. Verizon 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 91331 is up to 75 Mbps. Some customers have slower plan choices, which only go up to 20 Mbps. On average, Verizon customers can get speeds up to 21 Mbps.
Show all upload speeds
- 2.5% up to 75.0 Mbps
- 97.5% up to 20.0 Mbps
Starry Fixed Wireless in 91331, CA
Starry fixed wireless coverage
About 4.52%, or 4,557 people, have Starry fixed wireless internet available to them in the zip. The company covers the northeast, southwest, and west 91331 area. Starry 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.
Starry fixed wireless download speeds
Starry is below average when comparing download speeds to all other internet providers in 91331. Versus other fixed wireless providers in the area, Starry fixed wireless is the fastest. There are 3 different maximum speeds throughout 91331. The fastest plan anyone in 91331 can order from Starry goes up to 800 Mbps, the slowest package only goes up to 300 Mbps, and the zip-wide average maximum speed for 91331 customers is up to 476 Mbps.
Show all download speeds
- 22.8% up to 800.0 Mbps
- 31.0% up to 500.0 Mbps
- 46.2% up to 300.0 Mbps
Starry fixed wireless upload speeds
In 91331 download speeds tend to be faster than than upload speeds for Starry fixed wireless. Compared to other ISPs, Starry is below average where upload speeds are concerned, and the fastest compared to other 91331 fixed wireless providers. Starry 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 91331 is up to 250 Mbps. Some customers have slower plan choices, which only go up to 100 Mbps. On average, Starry customers can get speeds up to 155 Mbps.
Show all upload speeds
- 36.6% up to 250.0 Mbps
- 63.4% up to 100.0 Mbps
91331 Internet 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 internet in 91331 compare to the rest of California?
Internet speeds in 91331 are much faster versus the average speeds in California: 3,631 Mbps in California versus 5,027 Mbps in the zip. The state has similar internet availability compared to the zip. Average internet coverage in California is 98.73% versus 99.98% in 91331.
What zip codes have widespread internet?
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 internet service 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 internet coverage, faster speeds
- 91340, CA: less internet coverage, faster speeds
- 91402, CA: less internet coverage, faster speeds
- 91343, CA: less internet coverage, faster speeds
- 91342, CA: less internet coverage, faster speeds
- 91352, CA: less internet coverage, slower speeds
- 91605, CA: less internet coverage, slower speeds
- 91405, CA: more internet coverage, slower speeds
- 91344, CA: more internet coverage, faster speeds
- 91606, CA: less internet coverage, slower speeds
Zip Codes with Similar Populations
- 77084, TX: less internet coverage, slower speeds
- 10025, NY: less internet coverage, slower speeds
- 78245, TX: less internet coverage, faster speeds
- 90650, CA: less internet coverage, faster speeds
- 77433, TX: less internet coverage, slower speeds
- 75052, TX: less internet coverage, slower speeds
- 92503, CA: more internet coverage, slower speeds
- 11385, NY: less internet coverage, slower speeds
- 11377, NY: less internet coverage, slower speeds
- 11373, NY: less internet coverage, slower speeds