In Haddam there is 1 residential DSL provider covering 32.82% of the city. The average home can get speeds up to 10 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 Haddam, CT.
To see availability maps for all providers including fiber, cable, DSL, and more in Haddam, CT please click below.
DSL Internet Service Provider in Haddam
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 Haddam are not shown.
Haddam 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 Haddam is DSL internet available?
DSL Internet Availability Key
DSL is available in 32.82% of Haddam. 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 Haddam above to see who has service at your home.
How fast is DSL internet in Haddam?
The map below shows maximum DSL internet speeds by area in Haddam.
DSL Internet Speed Key
The average Haddam home can get up to 10 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 10 Mbps, which 32.82% of residents can get.
Is DSL the fastest internet I can get in Haddam?
The fastest internet for you may vary based on where in Haddam you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 99.35% of Haddam homes.
- Cable is fastest for less than 1% 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 Haddam homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Haddam, along with details on where in Haddam and at what speeds.
Frontier Communications DSL in Haddam, CT
Frontier DSL coverage
About 32.82%, or 659 people, have Frontier DSL internet available to them in the city. The company covers the east, southeast, and south Haddam 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 Haddam.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Haddam. Versus other DSL providers in the area, Frontier DSL is the fastest. There are no different maximum speeds throughout Haddam. The fastest plan anyone in Haddam can order from Frontier goes up to 10 Mbps, and all Haddam customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Haddam 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 Haddam DSL providers. Frontier offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Haddam is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Haddam DSL by Area
This information is most helpful to those looking for homes or considering moving to Haddam or any of the areas nearby.
How does DSL internet in Haddam compare to the rest of Connecticut?
DSL internet speeds in Haddam are much faster versus the average speeds in Connecticut: 0.00 Mbps in Connecticut versus 10 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Connecticut is 0.00% versus 32.82% in Haddam.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Haddam 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
- Shailerville, CT: more DSL coverage, similar speeds
- Ponset, CT: more DSL coverage, similar speeds
- Higganum, CT: more DSL coverage, faster speeds
- Maromas, CT: more DSL coverage, similar speeds
- Chester, CT: less DSL coverage, faster speeds
- Moodus, CT: more DSL coverage, faster speeds
- East Haddam, CT: more DSL coverage, similar speeds
- Hadlyme, CT: less DSL coverage, similar speeds
- Little City, CT: less DSL coverage, similar speeds
- Deep River, CT: less DSL coverage, similar speeds
Cities with Similar Populations
- Altona, NY: more DSL coverage, faster speeds
- Waterman, IL: more DSL coverage, faster speeds
- Warrensville, NC: less DSL coverage, faster speeds
- Stanchfield, MN: more DSL coverage, faster speeds
- Eagle Springs, NC: more DSL coverage, faster speeds
- Corinna, ME: more DSL coverage, faster speeds
- Coosada, AL: more DSL coverage, similar speeds
- Comanche, OK: more DSL coverage, faster speeds
- Center Village, OH: more DSL coverage, similar speeds
- Burnsville, MS: more DSL coverage, similar speeds