In 91723 there is 1 residential DSL provider covering 37.13% of the zip. The average home can get speeds up to 15 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 91723, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in 91723, CA please click below.
DSL Internet Service Provider in 91723
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 91723 are not shown.
91723 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 91723 is DSL internet available?
DSL Internet Availability Key
DSL is available in 37.13% of 91723. 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 91723 above to see who has service at your home.
How fast is DSL internet in 91723?
The map below shows maximum DSL internet speeds by area in 91723.
DSL Internet Speed Key
The average 91723 home can get up to 15 Mbps on their DSL internet plan. The fastest DSL download speed in the zip is 115 Mbps, which 1.37% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 34.81% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in 91723.
DSL internet speeds tend to be faster in the central parts of 91723, and slower in the northeast areas of the zip.
Is DSL the fastest internet I can get in 91723?
The fastest internet for you may vary based on where in 91723 you live. In general, fiber competes most often with DSL in the zip.
- Fiber is the fastest internet type for 91.15% of 91723 homes.
- Cable is fastest for 8.45% 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 91723 homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in 91723, along with details on where in 91723 and at what speeds.
Frontier Communications DSL in 91723, CA
Frontier DSL coverage
About 37.06%, or 7,226 people, have Frontier DSL internet available to them in the zip. The company covers the southeast, northeast, south, east, west, central, north, and northwest 91723 area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in some of 91723.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in 91723. Versus other DSL providers in the area, Frontier DSL is the slowest. There are 4 different maximum speeds throughout 91723. The fastest plan anyone in 91723 can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 91723 customers is up to 15 Mbps.
Show all download speeds
- 3.7% up to 115.0 Mbps
- 1.2% up to 70.0 Mbps
- 1.2% up to 45.0 Mbps
- 93.9% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In 91723 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 91723 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 91723 is up to 7.0 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
- 3.7% up to 7.0 Mbps
- 2.4% up to 3.0 Mbps
- 93.9% up to 1.0 Mbps
91723 DSL by Area
This information is most helpful to those looking for homes or considering moving to 91723 or any of the areas nearby.
How does DSL internet in 91723 compare to the rest of California?
DSL internet speeds in 91723 are much faster versus the average speeds in California: 0.00 Mbps in California versus 15 Mbps in the zip. The state has similar DSL availability compared to the zip. Average DSL coverage in California is 0.00% versus 37.13% in 91723.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around 91723 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
- 91722, CA: less DSL coverage, slower speeds
- 91791, CA: less DSL coverage, slower speeds
- 91724, CA: less DSL coverage, slower speeds
- 91740, CA: less DSL coverage, faster speeds
- 91702, CA: less DSL coverage, slower speeds
- 91790, CA: less DSL coverage, slower speeds
- 91741, CA: less DSL coverage, slower speeds
- 91773, CA: less DSL coverage, faster speeds
- 91792, CA: less DSL coverage, slower speeds
- 91744, CA: less DSL coverage, slower speeds
Zip Codes with Similar Populations
- 34788, FL: more DSL coverage, faster speeds
- 33440, FL: more DSL coverage, faster speeds
- 30540, GA: more DSL coverage, faster speeds
- 36203, AL: more DSL coverage, faster speeds
- 29706, SC: less DSL coverage, faster speeds
- 36207, AL: more DSL coverage, faster speeds
- 28732, NC: more DSL coverage, faster speeds
- 25414, WV: less DSL coverage, slower speeds
- 36507, AL: more DSL coverage, faster speeds
- 36870, AL: more DSL coverage, faster speeds