In Dorchester there is 1 residential DSL provider covering 97.30% of the city. The average home can get speeds up to 47 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 Dorchester, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Dorchester, NH please click below.
Dorchester, NH Availability Maps
DSL Internet Service Provider in Dorchester
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 Dorchester are not shown.
Dorchester 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 Dorchester is DSL internet available?
DSL Internet Availability Key
DSL is available in 97.30% of Dorchester. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Fidium. Call one of the companies with service in Dorchester above to see who has service at your home.
How fast is DSL internet in Dorchester?
The map below shows maximum DSL internet speeds by area in Dorchester.
DSL Internet Speed Key
The average Dorchester home can get up to 47 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which 39.64% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 57.66% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Dorchester.
DSL internet speeds tend to be faster in the northwest parts of Dorchester, and slower in the south areas of the city.
Is DSL the fastest internet I can get in Dorchester?
The fastest internet for you may vary based on where in Dorchester you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 97.30% of Dorchester 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 2.70% of Dorchester homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Dorchester, along with details on where in Dorchester and at what speeds.
Fidium Fiber DSL in Dorchester, NH
Fidium DSL coverage
About 97.30%, or 108 people, have Fidium DSL internet available to them in the city. The company covers the entire Dorchester area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in most of Dorchester.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Dorchester. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 2 different maximum speeds throughout Dorchester. The fastest plan anyone in Dorchester can order from Fidium goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Dorchester customers is up to 47 Mbps.
Show all download speeds
- 40.7% up to 100.0 Mbps
- 59.3% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Dorchester download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is below average where upload speeds are concerned, and the fastest compared to other Dorchester DSL providers. Fidium offers 2 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 Dorchester is up to 40 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 17 Mbps.
Show all upload speeds
- 40.7% up to 40.0 Mbps
- 59.3% up to 1.0 Mbps
Dorchester DSL by Area
This information is most helpful to those looking for homes or considering moving to Dorchester or any of the areas nearby.
How does DSL internet in Dorchester compare to the rest of New Hampshire?
DSL internet speeds in Dorchester are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 47 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in New Hampshire is 0.00% versus 97.30% in Dorchester.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Dorchester 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
- Orange, NH: more DSL coverage, slower speeds
- Canaan Center, NH: more DSL coverage, slower speeds
- Canaan, NH: more DSL coverage, slower speeds
- Lyme Center, NH: less DSL coverage, slower speeds
- Rumney, NH: more DSL coverage, slower speeds
- Hebron, NH: more DSL coverage, slower speeds
- West Rumney, NH: more DSL coverage, faster speeds
- West Canaan, NH: less DSL coverage, slower speeds
- Wentworth, NH: more DSL coverage, slower speeds
- Lyme, NH: more DSL coverage, faster speeds
Cities with Similar Populations
- Riggston, IL: less DSL coverage, slower speeds
- Maryhill, WA: less DSL coverage, slower speeds
- Marysville, TX: less DSL coverage, faster speeds
- Massillon, IA: less DSL coverage, faster speeds
- Maxine, AL: less DSL coverage, slower speeds
- Maybank, MS: less DSL coverage, slower speeds
- Mayflower, TX: less DSL coverage, faster speeds
- Rich, AR: less DSL coverage, slower speeds
- Richey, MS: less DSL coverage, slower speeds
- Richmond Furnace, PA: less DSL coverage, slower speeds