In Carlsbad there are 2 residential DSL providers covering 94.55% of the city. The average home can get speeds up to 88 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 Carlsbad, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Carlsbad, CA please click below.
Carlsbad, CA Availability Maps
DSL Internet Service Providers in Carlsbad
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 Carlsbad are not shown.
Carlsbad 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 Carlsbad is DSL internet available?
DSL Internet Availability Key
DSL is available in 94.55% of Carlsbad. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Carlsbad above to see who has service at your home.
How fast is DSL internet in Carlsbad?
The map below shows maximum DSL internet speeds by area in Carlsbad.
DSL Internet Speed Key
The average Carlsbad home can get up to 88 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which 68.64% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.75% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Carlsbad.
DSL internet speeds tend to be faster in the northwest parts of Carlsbad, and slower in the north areas of the city.
Is DSL the fastest internet I can get in Carlsbad?
The fastest internet for you may vary based on where in Carlsbad you live. In general, cable competes most often with DSL in the city.
- Fiber is the fastest internet type for 42.10% of Carlsbad homes.
- Cable is fastest for 57.83% 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 Carlsbad homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Carlsbad, along with details on where in Carlsbad and at what speeds.
AT&T DSL in Carlsbad, CA
AT&T DSL coverage
About 94.55%, or 91,223 people, have AT&T DSL internet available to them in the city. The company covers the entire Carlsbad area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of Carlsbad.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Carlsbad. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout Carlsbad. The fastest plan anyone in Carlsbad can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Carlsbad customers is up to 88 Mbps.
Show all download speeds
- 72.6% up to 100.0 Mbps
- 11.9% up to 75.0 Mbps
- 11.3% up to 50.0 Mbps
- 2.4% up to 25.0 Mbps
- 1.9% up to 10.0 Mbps
AT&T DSL upload speeds
In Carlsbad 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 Carlsbad DSL providers. AT&T offers 4 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 Carlsbad 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 18 Mbps.
Show all upload speeds
- 84.5% up to 20.0 Mbps
- 11.3% up to 10.0 Mbps
- 2.4% up to 5.0 Mbps
- 1.9% up to 1.0 Mbps
EarthLink DSL in Carlsbad, CA
EarthLink DSL coverage
About 94.55%, or 91,223 people, have EarthLink DSL internet available to them in the city. The company covers the entire Carlsbad area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Carlsbad.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Carlsbad. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout Carlsbad. The fastest plan anyone in Carlsbad can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Carlsbad customers is up to 88 Mbps.
Show all download speeds
- 72.6% up to 100.0 Mbps
- 11.9% up to 75.0 Mbps
- 11.3% up to 50.0 Mbps
- 2.4% up to 25.0 Mbps
- 1.9% up to 10.0 Mbps
EarthLink DSL upload speeds
In Carlsbad 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 Carlsbad DSL providers. EarthLink offers 4 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 Carlsbad 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 18 Mbps.
Show all upload speeds
- 84.5% up to 20.0 Mbps
- 11.3% up to 10.0 Mbps
- 2.4% up to 5.0 Mbps
- 1.9% up to 1.0 Mbps
Carlsbad DSL by Area
This information is most helpful to those looking for homes or considering moving to Carlsbad or any of the areas nearby.
How does DSL internet in Carlsbad compare to the rest of California?
DSL internet speeds in Carlsbad are much faster versus the average speeds in California: 0.00 Mbps in California versus 88 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in California is 0.00% versus 94.55% in Carlsbad.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Carlsbad 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
- Sunny Vista, CA: less DSL coverage, faster speeds
- Encinitas, CA: more DSL coverage, faster speeds
- Vista, CA: more DSL coverage, faster speeds
- San Marcos, CA: less DSL coverage, slower speeds
- Cardiff By The Sea, CA: more DSL coverage, faster speeds
- Oceanside, CA: less DSL coverage, slower speeds
- Rancho Santa Fe, CA: less DSL coverage, slower speeds
- Escondido, CA: less DSL coverage, slower speeds
- Bonsall, CA: less DSL coverage, slower speeds
- Valley Center, CA: less DSL coverage, slower speeds
Cities with Similar Populations
- Folsom, CA: less DSL coverage, slower speeds
- Flagstaff, AZ: less DSL coverage, slower speeds
- Eugene, OR: less DSL coverage, slower speeds
- Farmington Hills, MI: less DSL coverage, slower speeds
- Florissant, MO: less DSL coverage, slower speeds
- Everett, WA: less DSL coverage, slower speeds
- Fort Collins, CO: less DSL coverage, faster speeds
- Fayetteville, NC: less DSL coverage, slower speeds
- Fort Mill, SC: less DSL coverage, slower speeds
- Daytona Beach, FL: less DSL coverage, slower speeds