In Crestline there are 3 residential DSL providers covering 23.59% of the city. The average home can get speeds up to 14 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 Crestline, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Crestline, CA please click below.
Crestline, CA Availability Maps
DSL Internet Service Providers in Crestline
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 Crestline are not shown.
Crestline 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 Crestline is DSL internet available?
DSL Internet Availability Key
DSL is available in 23.59% of Crestline. 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 Crestline above to see who has service at your home.
How fast is DSL internet in Crestline?
The map below shows maximum DSL internet speeds by area in Crestline.
DSL Internet Speed Key
The average Crestline home can get up to 14 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 50 Mbps, which 2.31% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 21.03% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Crestline.
DSL internet speeds tend to be faster in the southwest parts of Crestline, and slower in the central areas of the city.
Is DSL the fastest internet I can get in Crestline?
The fastest internet for you may vary based on where in Crestline you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 97.64% of Crestline homes.
- Cable is fastest for 1.41% of the city.
- 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 Crestline homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Crestline, along with details on where in Crestline and at what speeds.
Frontier Communications DSL in Crestline, CA
Frontier DSL coverage
About 21.27%, or 2,244 people, have Frontier DSL internet available to them in the city. The company covers the central, north, northwest, south, west, northeast, and southwest Crestline 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 Crestline.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Crestline. Versus other DSL providers in the area, Frontier DSL is the slowest. There are 2 different maximum speeds throughout Crestline. The fastest plan anyone in Crestline can order from Frontier goes up to 45 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Crestline customers is up to 10 Mbps.
Show all download speeds
- 1.2% up to 45.0 Mbps
- 98.8% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Crestline 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 Crestline DSL providers. Frontier offers 2 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 Crestline is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 1.0 Mbps.
Show all upload speeds
- 1.2% up to 3.0 Mbps
- 98.8% up to 1.0 Mbps
AT&T DSL in Crestline, CA
AT&T DSL coverage
About 2.31%, or 244 people, have AT&T DSL internet available to them in the city. The company covers the southwest Crestline 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 Crestline.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Crestline. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are no different maximum speeds throughout Crestline. The fastest plan anyone in Crestline can order from AT&T goes up to 50 Mbps, and all Crestline customers can get this speed.
Show all download speeds
- 100.0% up to 50.0 Mbps
AT&T DSL upload speeds
In Crestline 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 one of the fastest compared to other Crestline DSL providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Crestline is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
EarthLink DSL in Crestline, CA
EarthLink DSL coverage
About 2.31%, or 244 people, have EarthLink DSL internet available to them in the city. The company covers the southwest Crestline 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 Crestline.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Crestline. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are no different maximum speeds throughout Crestline. The fastest plan anyone in Crestline can order from EarthLink goes up to 50 Mbps, and all Crestline customers can get this speed.
Show all download speeds
- 100.0% up to 50.0 Mbps
EarthLink DSL upload speeds
In Crestline 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 one of the fastest compared to other Crestline DSL providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Crestline is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
Crestline DSL by Area
This information is most helpful to those looking for homes or considering moving to Crestline or any of the areas nearby.
How does DSL internet in Crestline compare to the rest of California?
DSL internet speeds in Crestline are much faster versus the average speeds in California: 0.00 Mbps in California versus 14 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in California is 0.00% versus 23.59% in Crestline.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Crestline 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
- Cedarpines Park, CA: more DSL coverage, slower speeds
- Twin Peaks, CA: less DSL coverage, faster speeds
- Lake Arrowhead, CA: less DSL coverage, slower speeds
- San Bernardino, CA: less DSL coverage, faster speeds
- Devore Heights, CA: less DSL coverage, faster speeds
- Highland, CA: more DSL coverage, faster speeds
- Rialto, CA: more DSL coverage, faster speeds
- Lytle Creek, CA: less DSL coverage, faster speeds
- Oak Hills, CA: more DSL coverage, faster speeds
- Glen Martin, CA: more DSL coverage, faster speeds
Cities with Similar Populations
- Bonner Springs, KS: more DSL coverage, faster speeds
- Bunker Hill, WV: more DSL coverage, faster speeds
- Quincy, WA: less DSL coverage, faster speeds
- Brookings, OR: more DSL coverage, faster speeds
- Wood River, IL: more DSL coverage, slower speeds
- Progress, PA: less DSL coverage, slower speeds
- Bridgeton, MO: more DSL coverage, faster speeds
- Woods Cross, UT: more DSL coverage, faster speeds
- Breinigsville, PA: less DSL coverage, faster speeds
- Brandenburg, KY: more DSL coverage, faster speeds