In 91739 there are 3 residential Fiber providers covering 38.35% of the zip. The average home can get speeds up to 6,997 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 Fiber internet providers in 91739, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in 91739, CA please click below.
Fiber Internet Service Providers in 91739
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 91739 are not shown.
91739 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 91739 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 38.35% of 91739. Areas in green have fiber 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 91739 above to see who has service at your home.
How fast is fiber internet in 91739?
The map below shows maximum fiber internet speeds by area in 91739.
Fiber Internet Speed Key
The average 91739 home can get up to 6,997 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 7,000 Mbps, which 38.34% 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 1,000 Mbps. See the internet provider details below for info about their speed and coverage in 91739.
Fiber internet speeds tend to be faster in the southeast parts of 91739, and slower in the south areas of the zip.
Is fiber the fastest internet I can get in 91739?
The fastest internet for you may vary based on where in 91739 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 38.35% of 91739 homes.
- Cable is fastest for 54.97% 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 6.63% of 91739 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 91739, along with details on where in 91739 and at what speeds.
Frontier Communications Fiber in 91739, CA
Frontier fiber coverage
About 38.34%, or 16,243 people, have Frontier fiber internet available to them in the zip. The company covers the entire 91739 area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in some of 91739.
Frontier Communications fiber download speeds
Frontier is the fastest when comparing download speeds to all other internet providers in 91739. Versus other fiber providers in the area, Frontier fiber is the fastest. There are no different maximum speeds throughout 91739. The fastest plan anyone in 91739 can order from Frontier goes up to 7,000 Mbps, and all 91739 customers can get this speed.
Show all download speeds
- 100.0% up to 7,000.0 Mbps
Frontier Communications fiber upload speeds
In 91739 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 91739 fiber providers. Frontier offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 91739 is up to 7,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 7,000.0 Mbps
Spectrum Fiber in 91739, CA
Spectrum fiber coverage
About 8.25%, or 3,495 people, have Spectrum fiber internet available to them in the zip. The company covers the southeast and south 91739 area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 91739.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in 91739. Versus other fiber providers in the area, Spectrum fiber is one of the slowest. There are no different maximum speeds throughout 91739. The fastest plan anyone in 91739 can order from Spectrum goes up to 1,000 Mbps, and all 91739 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In 91739 download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other 91739 fiber providers. Spectrum 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 91739 is up to 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 308 Mbps.
Show all upload speeds
- 58.6% up to 500.0 Mbps
- 41.4% up to 35.0 Mbps
Onward Fiber in 91739, CA
Onward fiber coverage
About 2.22%, or 942 people, have Onward fiber internet available to them in the zip. The company covers the southwest and west 91739 area. Onward is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of 91739.
Onward fiber download speeds
Onward is below average when comparing download speeds to all other internet providers in 91739. Versus other fiber providers in the area, Onward fiber is one of the slowest. There are no different maximum speeds throughout 91739. The fastest plan anyone in 91739 can order from Onward goes up to 1,000 Mbps, and all 91739 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Onward fiber upload speeds
In 91739 download speeds tend to be equal to than upload speeds for Onward fiber. Compared to other ISPs, Onward is above average where upload speeds are concerned, and below average compared to other 91739 fiber providers. Onward offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 91739 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
91739 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 91739 or any of the areas nearby.
How does fiber internet in 91739 compare to the rest of California?
Fiber internet speeds in 91739 are much faster versus the average speeds in California: 0.00 Mbps in California versus 6,997 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in California is 0.00% versus 38.35% in 91739.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 91739 are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber 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
- 91730, CA: more fiber coverage, slower speeds
- 92336, CA: more fiber coverage, slower speeds
- 91701, CA: less fiber coverage, faster speeds
- 92335, CA: less fiber coverage, slower speeds
- 92337, CA: less fiber coverage, slower speeds
- 91764, CA: more fiber coverage, slower speeds
- 92377, CA: less fiber coverage, slower speeds
- 91784, CA: more fiber coverage, faster speeds
- 91786, CA: more fiber coverage, slower speeds
- 92316, CA: less fiber coverage, slower speeds
Zip Codes with Similar Populations
- 85302, AZ: less fiber coverage, slower speeds
- 63033, MO: more fiber coverage, slower speeds
- 70810, LA: more fiber coverage, slower speeds
- 75050, TX: more fiber coverage, slower speeds
- 78596, TX: more fiber coverage, slower speeds
- 78634, TX: more fiber coverage, slower speeds
- 80602, CO: more fiber coverage, slower speeds
- 84005, UT: more fiber coverage, slower speeds
- 84401, UT: more fiber coverage, faster speeds
- 84604, UT: more fiber coverage, faster speeds