In Castleton there are 2 residential DSL providers covering 89.01% of the neighborhood. The average home can get speeds up to 96 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 Castleton, Indianapolis, IN.
To see availability maps for all providers including fiber, cable, DSL, and more in Castleton, Indianapolis, IN please click below.
Castleton, Indianapolis, IN Availability Maps
DSL Internet Service Providers in Castleton
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 Castleton are not shown.
Castleton 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 Castleton is DSL internet available?
DSL Internet Availability Key
DSL is available in 89.01% of Castleton. 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 Castleton above to see who has service at your home.
How fast is DSL internet in Castleton?
The map below shows maximum DSL internet speeds by area in Castleton.
DSL Internet Speed Key
The average Castleton home can get up to 96 Mbps on their DSL internet plan. The fastest DSL download speed in the neighborhood is 100 Mbps, which 78.40% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.16% of homes can only purchase plans up to 25 Mbps. See the internet provider details below for info about their speed and coverage in Castleton.
DSL internet speeds tend to be faster in the west parts of Castleton, and slower in the south areas of the neighborhood.
Is DSL the fastest internet I can get in Castleton?
The fastest internet for you may vary based on where in Castleton you live. In general, fiber competes most often with DSL in the neighborhood.
- Fiber is the fastest internet type for 76.02% of Castleton homes.
- Cable is fastest for 23.98% of the neighborhood.
- 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 Castleton homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Castleton, along with details on where in Castleton and at what speeds.
EarthLink DSL in Castleton, Indianapolis, IN
EarthLink DSL coverage
About 89.01%, or 3,288 people, have EarthLink DSL internet available to them in the neighborhood. The company covers the entire Castleton area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castleton.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Castleton. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 4 different maximum speeds throughout Castleton. The fastest plan anyone in Castleton can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the neighborhood-wide average maximum speed for Castleton customers is up to 96 Mbps.
Show all download speeds
- 88.1% up to 100.0 Mbps
- 8.0% up to 75.0 Mbps
- 2.6% up to 50.0 Mbps
- 1.3% up to 25.0 Mbps
EarthLink DSL upload speeds
In Castleton 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 Castleton DSL providers. EarthLink offers 3 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castleton is up to 20 Mbps. Some customers have slower plan choices, which only go up to 5.0 Mbps. On average, EarthLink customers can get speeds up to 20 Mbps.
Show all upload speeds
- 96.1% up to 20.0 Mbps
- 2.6% up to 10.0 Mbps
- 1.3% up to 5.0 Mbps
AT&T DSL in Castleton, Indianapolis, IN
AT&T DSL coverage
About 89.01%, or 3,288 people, have AT&T DSL internet available to them in the neighborhood. The company covers the entire Castleton area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castleton.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Castleton. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 4 different maximum speeds throughout Castleton. The fastest plan anyone in Castleton can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the neighborhood-wide average maximum speed for Castleton customers is up to 96 Mbps.
Show all download speeds
- 88.1% up to 100.0 Mbps
- 8.0% up to 75.0 Mbps
- 2.6% up to 50.0 Mbps
- 1.3% up to 25.0 Mbps
AT&T DSL upload speeds
In Castleton 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 Castleton DSL providers. AT&T offers 3 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castleton is up to 20 Mbps. Some customers have slower plan choices, which only go up to 5.0 Mbps. On average, AT&T customers can get speeds up to 20 Mbps.
Show all upload speeds
- 96.1% up to 20.0 Mbps
- 2.6% up to 10.0 Mbps
- 1.3% up to 5.0 Mbps
Castleton DSL by Area
This information is most helpful to those looking for homes or considering moving to Castleton or any of the areas nearby.
How does DSL internet in Castleton compare to the rest of Indianapolis?
DSL internet speeds in Castleton are much faster versus the average speeds in Indianapolis: 0.00 Mbps in Indianapolis versus 96 Mbps in the neighborhood. The city has similar DSL availability compared to the neighborhood. Average DSL coverage in Indianapolis is 0.00% versus 89.01% in Castleton.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Castleton 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 neighborhoods?
Below are neighborhoods nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Neighborhoods
- Hearth Stone, Indianapolis, IN: more DSL coverage, slower speeds
- Nora, Indianapolis, IN: less DSL coverage, slower speeds
- Broad Ripple, Indianapolis, IN: less DSL coverage, slower speeds
- Geist, Indianapolis, IN: more DSL coverage, slower speeds
- Devington, Indianapolis, IN: less DSL coverage, slower speeds
- North Willow Farms, Indianapolis, IN: more DSL coverage, slower speeds
- Meridian-Kessler, Indianapolis, IN: less DSL coverage, slower speeds
- Westchester Estates, Indianapolis, IN: more DSL coverage, slower speeds
- Mapleton-Fall Creek, Indianapolis, IN: more DSL coverage, slower speeds
- Martindale-Brightwood, Indianapolis, IN: less DSL coverage, slower speeds
Neighborhoods with Similar Populations
- Santa Clara Heights, Santa Clara, UT: more DSL coverage, slower speeds
- Nearnorthwest, South Bend, IN: more DSL coverage, slower speeds
- Apple Valley, Birmingham, AL: less DSL coverage, slower speeds
- Capitol Hill, Oklahoma City, OK: more DSL coverage, slower speeds
- Lykins, Kansas City, MO: less DSL coverage, slower speeds
- Aspen, Davis, CA: more DSL coverage, slower speeds
- Woodcrest, Coon Rapids, MN: more DSL coverage, faster speeds
- Meadow Park, Rochester, MN: more DSL coverage, slower speeds
- Barrio Campanilla, Toa Baja, PR: more DSL coverage, slower speeds
- Parkmont, Fremont, CA: more DSL coverage, slower speeds