In Underhill there is 1 residential DSL provider covering 99.69% of the city. The average home can get speeds up to 37 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 Underhill, VT.
To see availability maps for all providers including fiber, cable, DSL, and more in Underhill, VT please click below.
Underhill, VT Availability Maps
DSL Internet Service Provider in Underhill
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 Underhill are not shown.
Underhill 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 Underhill is DSL internet available?

DSL Internet Availability Key
DSL is available in 99.69% of Underhill. 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 Underhill above to see who has service at your home.
How fast is DSL internet in Underhill?
The map below shows maximum DSL internet speeds by area in Underhill.

DSL Internet Speed Key
The average Underhill home can get up to 37 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 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, 56.88% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Underhill.
DSL internet speeds tend to be faster in the southeast parts of Underhill, and slower in the northwest areas of the city.
Is DSL the fastest internet I can get in Underhill?
The fastest internet for you may vary based on where in Underhill you live. In general, cable competes most often with DSL in the city.
- Fiber is the fastest internet type for 4.42% of Underhill homes.
- Cable is fastest for 95.27% 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 Underhill homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Underhill, along with details on where in Underhill and at what speeds.
Fidium Fiber DSL in Underhill, VT

Fidium DSL coverage
About 99.69%, or 3,812 people, have Fidium DSL internet available to them in the city. The company covers the entire Underhill area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in most of Underhill.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Underhill. Versus other DSL providers in the area, Fidium DSL is the fastest. There are 4 different maximum speeds throughout Underhill. The fastest plan anyone in Underhill 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 Underhill customers is up to 37 Mbps.
Show all download speeds
- 0.9% up to 100.0 Mbps
- 25.6% up to 80.0 Mbps
- 16.4% up to 60.0 Mbps
- 57.1% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Underhill 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 Underhill DSL providers. Fidium offers 4 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 Underhill 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 7.7 Mbps.
Show all upload speeds
- 0.9% up to 40.0 Mbps
- 25.6% up to 20.0 Mbps
- 16.4% up to 10.0 Mbps
- 57.1% up to 1.0 Mbps
Underhill DSL by Area
This information is most helpful to those looking for homes or considering moving to Underhill or any of the areas nearby.
How does DSL internet in Underhill compare to the rest of Vermont?
DSL internet speeds in Underhill are much faster versus the average speeds in Vermont: 0.00 Mbps in Vermont versus 37 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Vermont is 0.00% versus 99.69% in Underhill.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Underhill 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
- Underhill Center, VT: more DSL coverage, faster speeds
- Stevensville, VT: less DSL coverage, faster speeds
- Essex Junction, VT: more DSL coverage, slower speeds
- Jericho, VT: less DSL coverage, slower speeds
- Westford, VT: less DSL coverage, slower speeds
- Cambridge, VT: less DSL coverage, slower speeds
- Essex, VT: less DSL coverage, slower speeds
- Jeffersonville, VT: less DSL coverage, slower speeds
- South Cambridge, VT: more DSL coverage, faster speeds
- West Bolton, VT: less DSL coverage, faster speeds
Cities with Similar Populations
- Vassalboro, ME: less DSL coverage, slower speeds
- Vieques, PR: less DSL coverage, slower speeds
- Vienna, OH: less DSL coverage, slower speeds
- Vienna, GA: less DSL coverage, slower speeds
- Victoria, VA: less DSL coverage, slower speeds
- Victor, MT: less DSL coverage, faster speeds
- Vevay, IN: less DSL coverage, faster speeds
- Versailles, OH: less DSL coverage, faster speeds
- Verona, NY: less DSL coverage, faster speeds
- Verona, MS: less DSL coverage, slower speeds


