In Dover there is 1 residential DSL provider covering 98.46% of the city. The average home can get speeds up to 23 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 Dover, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Dover, NH please click below.
DSL Internet Service Provider in Dover
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 Dover are not shown.
Dover 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 Dover is DSL internet available?
DSL Internet Availability Key
DSL is available in 98.46% of Dover. 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 Dover above to see who has service at your home.
How fast is DSL internet in Dover?
The map below shows maximum DSL internet speeds by area in Dover.
DSL Internet Speed Key
The average Dover home can get up to 23 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 80 Mbps, which 9.51% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 75.96% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Dover.
DSL internet speeds tend to be faster in the central parts of Dover, and slower in the northwest areas of the city.
Is DSL the fastest internet I can get in Dover?
The fastest internet for you may vary based on where in Dover you live. In general, cable competes most often with DSL in the city.
- Fiber is the fastest internet type for 12.19% of Dover homes.
- Cable is fastest for 87.78% 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 Dover homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Dover, along with details on where in Dover and at what speeds.
Fidium Fiber DSL in Dover, NH
Fidium DSL coverage
About 98.46%, or 32,577 people, have Fidium DSL internet available to them in the city. The company covers the entire Dover area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in most of Dover.
Fidium Fiber DSL download speeds
Fidium is the slowest when comparing download speeds to all other internet providers in Dover. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 3 different maximum speeds throughout Dover. The fastest plan anyone in Dover can order from Fidium goes up to 80 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Dover customers is up to 23 Mbps.
Show all download speeds
- 9.7% up to 80.0 Mbps
- 13.2% up to 60.0 Mbps
- 77.1% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Dover download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is the slowest where upload speeds are concerned, and the fastest compared to other Dover DSL providers. Fidium offers 3 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 Dover is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Fidium customers can get speeds up to 4.0 Mbps.
Show all upload speeds
- 9.7% up to 20.0 Mbps
- 13.2% up to 10.0 Mbps
- 77.1% up to 1.0 Mbps
Dover DSL by Area
This information is most helpful to those looking for homes or considering moving to Dover or any of the areas nearby.
How does DSL internet in Dover compare to the rest of New Hampshire?
DSL internet speeds in Dover are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 23 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in New Hampshire is 0.00% versus 98.46% in Dover.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Dover 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
- Rollinsford, NH: less DSL coverage, slower speeds
- Madbury, NH: less DSL coverage, slower speeds
- Somersworth, NH: more DSL coverage, faster speeds
- Durham, NH: less DSL coverage, slower speeds
- South Berwick, ME: less DSL coverage, faster speeds
- Eliot, ME: less DSL coverage, slower speeds
- Berwick, ME: less DSL coverage, slower speeds
- Newington, NH: less DSL coverage, slower speeds
- Brixham, ME: more DSL coverage, slower speeds
- Lee, NH: less DSL coverage, slower speeds
Cities with Similar Populations
- Anthem, AZ: less DSL coverage, faster speeds
- Wheat Ridge, CO: less DSL coverage, faster speeds
- Baldwinsville, NY: less DSL coverage, faster speeds
- Banning, CA: less DSL coverage, faster speeds
- Barstow, CA: less DSL coverage, slower speeds
- Bell, CA: less DSL coverage, slower speeds
- Bethel Park, PA: less DSL coverage, slower speeds
- West Chicago, IL: less DSL coverage, faster speeds
- Boone, NC: less DSL coverage, faster speeds
- West Odessa, TX: less DSL coverage, slower speeds