In Connecticut there is 1 residential DSL provider covering 63.39% of the state. The average home can get speeds up to 29 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 Connecticut.
To see availability maps for all providers including fiber, cable, DSL, and more in Connecticut please click below.
DSL Internet Service Provider in Connecticut
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 Connecticut are not shown.
Connecticut 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 Connecticut is DSL internet available?
DSL Internet Availability Key
DSL is available in 63.39% of Connecticut. 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 Connecticut above to see who has service at your home.
How fast is DSL internet in Connecticut?
The map below shows maximum DSL internet speeds by area in Connecticut.
DSL Internet Speed Key
The average Connecticut home can get up to 29 Mbps on their DSL internet plan. The fastest DSL download speed in the state is 200 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 45.82% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Connecticut.
DSL internet speeds tend to be faster in the south parts of Connecticut, and slower in the northwest areas of the state.
Is DSL the fastest internet I can get in Connecticut?
The fastest internet for you may vary based on where in Connecticut you live. In general, fiber competes most often with DSL in the state.
- Fiber is the fastest internet type for 91.44% of Connecticut homes.
- Cable is fastest for 6.94% of the state.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for 1.42% of Connecticut homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Connecticut, along with details on where in Connecticut and at what speeds.
Frontier Communications DSL in Connecticut
Frontier DSL coverage
About 63.39%, or 2,285,899 people, have Frontier DSL internet available to them in the state. The company covers the entire Connecticut area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Connecticut.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Connecticut. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 6 different maximum speeds throughout Connecticut. The fastest plan anyone in Connecticut can order from Frontier goes up to 200 Mbps, the slowest package only goes up to 10 Mbps, and the state-wide average maximum speed for Connecticut customers is up to 29 Mbps.
Show all download speeds
- 0.1% up to 200.0 Mbps
- 5.3% up to 115.0 Mbps
- 8.7% up to 90.0 Mbps
- 5.1% up to 70.0 Mbps
- 8.4% up to 45.0 Mbps
- 72.3% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Connecticut 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 fastest compared to other Connecticut DSL providers. Frontier offers 8 different upload speeds across the state, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Connecticut is up to 200 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 2.2 Mbps.
Show all upload speeds
- 0.1% up to 200.0 Mbps
- 0.0% up to 12.0 Mbps
- 0.2% up to 8.0 Mbps
- 5.3% up to 7.0 Mbps
- 3.0% up to 6.0 Mbps
- 8.0% up to 5.0 Mbps
- 11.2% up to 3.0 Mbps
- 72.3% up to 1.0 Mbps
Connecticut DSL by Area
This information is most helpful to those looking for homes or considering moving to Connecticut or any of the areas nearby.
How does DSL internet in Connecticut compare to the rest of the United States?
DSL internet speeds in Connecticut are much faster versus the average speeds in the United States: 0.00 Mbps in the United States versus 29 Mbps in the state. The nation has similar DSL availability compared to the state. Average DSL coverage in the United States is 0.00% versus 63.39% in Connecticut.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Connecticut 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 states?
Below are states nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby States
- Massachusetts: less DSL coverage, slower speeds
- New Jersey: less DSL coverage, faster speeds
- New York: less DSL coverage, faster speeds
- New Hampshire: less DSL coverage, slower speeds
- Vermont: more DSL coverage, faster speeds
- Pennsylvania: less DSL coverage, faster speeds
- Maryland: less DSL coverage, slower speeds
- Maine: more DSL coverage, slower speeds
- Virginia: less DSL coverage, faster speeds
- West Virginia: less DSL coverage, faster speeds
States with Similar Populations
- Alaska: more DSL coverage, faster speeds
- Hawaii: more DSL coverage, slower speeds
- Puerto Rico: more DSL coverage, slower speeds
- Michigan: more DSL coverage, faster speeds
- New Mexico: more DSL coverage, faster speeds
- New Hampshire: less DSL coverage, slower speeds
- Mississippi: more DSL coverage, faster speeds
- Minnesota: more DSL coverage, faster speeds
- Massachusetts: less DSL coverage, slower speeds
- Maine: more DSL coverage, slower speeds