In Marathon there are 2 residential DSL providers covering 84.88% of the city. The average home can get speeds up to 79 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 Marathon, FL.
To see availability maps for all providers including fiber, cable, DSL, and more in Marathon, FL please click below.
Marathon, FL Availability Maps
DSL Internet Service Providers in Marathon
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 Marathon are not shown.
Marathon 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 Marathon is DSL internet available?
DSL Internet Availability Key
DSL is available in 84.88% of Marathon. 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 Marathon above to see who has service at your home.
How fast is DSL internet in Marathon?
The map below shows maximum DSL internet speeds by area in Marathon.
DSL Internet Speed Key
The average Marathon home can get up to 79 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which 55.88% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 13.05% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Marathon.
DSL internet speeds tend to be faster in the west parts of Marathon, and slower in the southwest areas of the city.
Is DSL the fastest internet I can get in Marathon?
The fastest internet for you may vary based on where in Marathon you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 59.07% of Marathon homes.
- Cable is fastest for 39.45% 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 1.20% of Marathon homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Marathon, along with details on where in Marathon and at what speeds.
AT&T DSL in Marathon, FL
AT&T DSL coverage
About 84.88%, or 8,817 people, have AT&T DSL internet available to them in the city. The company covers the southwest, central, northeast, south, east, and west Marathon area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Marathon.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Marathon. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout Marathon. The fastest plan anyone in Marathon 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 Marathon customers is up to 79 Mbps.
Show all download speeds
- 65.8% up to 100.0 Mbps
- 9.5% up to 75.0 Mbps
- 8.2% up to 50.0 Mbps
- 1.1% up to 25.0 Mbps
- 15.4% up to 10.0 Mbps
AT&T DSL upload speeds
In Marathon 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 Marathon 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 Marathon 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 16 Mbps.
Show all upload speeds
- 75.3% up to 20.0 Mbps
- 8.2% up to 10.0 Mbps
- 1.1% up to 5.0 Mbps
- 15.4% up to 1.0 Mbps
EarthLink DSL in Marathon, FL
EarthLink DSL coverage
About 84.88%, or 8,817 people, have EarthLink DSL internet available to them in the city. The company covers the southwest, central, northeast, south, east, and west Marathon area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Marathon.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Marathon. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout Marathon. The fastest plan anyone in Marathon 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 Marathon customers is up to 79 Mbps.
Show all download speeds
- 65.8% up to 100.0 Mbps
- 9.5% up to 75.0 Mbps
- 8.2% up to 50.0 Mbps
- 1.1% up to 25.0 Mbps
- 15.4% up to 10.0 Mbps
EarthLink DSL upload speeds
In Marathon 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 Marathon 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 Marathon 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 16 Mbps.
Show all upload speeds
- 75.3% up to 20.0 Mbps
- 8.2% up to 10.0 Mbps
- 1.1% up to 5.0 Mbps
- 15.4% up to 1.0 Mbps
Marathon DSL by Area
This information is most helpful to those looking for homes or considering moving to Marathon or any of the areas nearby.
How does DSL internet in Marathon compare to the rest of Florida?
DSL internet speeds in Marathon are much faster versus the average speeds in Florida: 0.00 Mbps in Florida versus 79 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Florida is 0.00% versus 84.88% in Marathon.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Marathon 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
- Key Colony Beach, FL: more DSL coverage, slower speeds
- Rock Harbor, FL: more DSL coverage, slower speeds
- Big Pine Key, FL: less DSL coverage, slower speeds
- Plantation Key, FL: more DSL coverage, faster speeds
- Summerland Key, FL: less DSL coverage, slower speeds
- Cudjoe Key, FL: more DSL coverage, slower speeds
- Islamorada, FL: more DSL coverage, slower speeds
- Sugarloaf Shores, FL: less DSL coverage, slower speeds
- Tavernier, FL: more DSL coverage, faster speeds
- Key West, FL: more DSL coverage, faster speeds
Cities with Similar Populations
- Vicksburg, MI: less DSL coverage, slower speeds
- Creedmoor, NC: more DSL coverage, slower speeds
- Crestline, CA: less DSL coverage, slower speeds
- Crestwood, IL: more DSL coverage, faster speeds
- Creswell, OR: more DSL coverage, slower speeds
- Cross Lanes, WV: less DSL coverage, slower speeds
- Tremonton, UT: less DSL coverage, slower speeds
- Tres Hermanos, PR: less DSL coverage, slower speeds
- Tuttle, OK: less DSL coverage, slower speeds
- Uncasville, CT: less DSL coverage, slower speeds