In 03251 there is 1 residential DSL provider covering 98.96% of the zip. The average home can get speeds up to 17 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 03251, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in 03251, NH please click below.
DSL Internet Service Provider in 03251
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 03251 are not shown.
03251 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 03251 is DSL internet available?
DSL Internet Availability Key
DSL is available in 98.96% of 03251. 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 03251 above to see who has service at your home.
How fast is DSL internet in 03251?
The map below shows maximum DSL internet speeds by area in 03251.
DSL Internet Speed Key
The average 03251 home can get up to 17 Mbps on their DSL internet plan. The fastest DSL download speed in the zip is 80 Mbps, which 8.83% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 89.33% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in 03251.
DSL internet speeds tend to be faster in the south parts of 03251, and slower in the central areas of the zip.
Is DSL the fastest internet I can get in 03251?
The fastest internet for you may vary based on where in 03251 you live. In general, cable competes most often with DSL in the zip.
- Fiber is the fastest internet type for 4.23% of 03251 homes.
- Cable is fastest for 95.46% of the zip.
- 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 03251 homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in 03251, along with details on where in 03251 and at what speeds.
Fidium Fiber DSL in 03251, NH
Fidium DSL coverage
About 98.96%, or 1,614 people, have Fidium DSL internet available to them in the zip. The company covers the entire 03251 area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in most of 03251.
Fidium Fiber DSL download speeds
Fidium is the slowest when comparing download speeds to all other internet providers in 03251. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 3 different maximum speeds throughout 03251. The fastest plan anyone in 03251 can order from Fidium goes up to 80 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 03251 customers is up to 17 Mbps.
Show all download speeds
- 8.9% up to 80.0 Mbps
- 0.8% up to 60.0 Mbps
- 90.3% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In 03251 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 03251 DSL providers. Fidium offers 3 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 03251 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 2.8 Mbps.
Show all upload speeds
- 8.9% up to 20.0 Mbps
- 0.8% up to 10.0 Mbps
- 90.3% up to 1.0 Mbps
03251 DSL by Area
This information is most helpful to those looking for homes or considering moving to 03251 or any of the areas nearby.
How does DSL internet in 03251 compare to the rest of New Hampshire?
DSL internet speeds in 03251 are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 17 Mbps in the zip. The state has similar DSL availability compared to the zip. Average DSL coverage in New Hampshire is 0.00% versus 98.96% in 03251.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around 03251 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 zip codes?
Below are zip codes nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Zip Codes
- 03262, NH: less DSL coverage, faster speeds
- 03293, NH: less DSL coverage, slower speeds
- 03285, NH: more DSL coverage, faster speeds
- 03215, NH: more DSL coverage, faster speeds
- 03238, NH: more DSL coverage, slower speeds
- 03279, NH: more DSL coverage, faster speeds
- 03780, NH: more DSL coverage, faster speeds
- 03785, NH: less DSL coverage, faster speeds
- 03740, NH: less DSL coverage, faster speeds
- 03774, NH: less DSL coverage, faster speeds
Zip Codes with Similar Populations
- 49777, MI: less DSL coverage, faster speeds
- 94956, CA: less DSL coverage, slower speeds
- 78379, TX: less DSL coverage, faster speeds
- 74637, OK: less DSL coverage, faster speeds
- 65590, MO: less DSL coverage, faster speeds
- 55335, MN: less DSL coverage, faster speeds
- 48878, MI: less DSL coverage, slower speeds
- 15550, PA: less DSL coverage, faster speeds
- 30631, GA: less DSL coverage, faster speeds
- 30452, GA: less DSL coverage, faster speeds