In Sullivan County there are 4 residential Fiber providers covering 58.39% of the county. The average home can get speeds up to 2,299 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 Fiber internet providers in Sullivan County, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Sullivan County, NH please click below.
Sullivan County, NH Availability Maps
Fiber Internet Service Providers in Sullivan County
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 Sullivan County are not shown.
Sullivan County 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 Sullivan County is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 58.39% of Sullivan County. Areas in green have fiber 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 Sullivan County above to see who has service at your home.
How fast is fiber internet in Sullivan County?
The map below shows maximum fiber internet speeds by area in Sullivan County.
Fiber Internet Speed Key
The average Sullivan County home can get up to 2,299 Mbps on their fiber internet plan. The fastest fiber download speed in the county is 8,000 Mbps, which 3.53% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 3.74% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Sullivan County.
Fiber internet speeds tend to be faster in the northeast parts of Sullivan County, and slower in the southeast areas of the county.
Is fiber the fastest internet I can get in Sullivan County?
The fastest internet for you may vary based on where in Sullivan County you live. In general, cable competes most often with fiber in the county.
- Fiber is the fastest internet type for 57.99% of Sullivan County homes.
- Cable is fastest for 40.86% of the county.
- 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 Sullivan County homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Sullivan County, along with details on where in Sullivan County and at what speeds.
Fidium Fiber Fiber in Sullivan County, NH
Fidium fiber coverage
About 52.69%, or 22,690 people, have Fidium fiber internet available to them in the county. The company covers the east, northeast, southwest, central, south, west, north, and southeast Sullivan County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Sullivan County.
Fidium Fiber fiber download speeds
Fidium is above average when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, Fidium fiber is below average. There are 2 different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from Fidium goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the county-wide average maximum speed for Sullivan County customers is up to 1,978 Mbps.
Show all download speeds
- 97.8% up to 2,000.0 Mbps
- 2.2% up to 1,000.0 Mbps
Fidium Fiber fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for Fidium fiber. Compared to other ISPs, Fidium is above average where upload speeds are concerned, and below average compared to other Sullivan County fiber providers. Fidium offers 2 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Sullivan County is up to 2,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Fidium customers can get speeds up to 1,978 Mbps.
Show all upload speeds
- 97.8% up to 2,000.0 Mbps
- 2.2% up to 1,000.0 Mbps
New Hampshire Electric Co-op Fiber in Sullivan County, NH
New Hampshire Electric Co-op fiber coverage
About 5.87%, or 2,526 people, have New Hampshire Electric Co-op fiber internet available to them in the county. The company covers the south, southeast, and southwest Sullivan County area. New Hampshire Electric Co-op is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
New Hampshire Electric Co-op fiber download speeds
New Hampshire Electric Co-op is above average when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, New Hampshire Electric Co-op fiber is below average. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from New Hampshire Electric Co-op goes up to 2,000 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
New Hampshire Electric Co-op fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for New Hampshire Electric Co-op fiber. Compared to other ISPs, New Hampshire Electric Co-op is above average where upload speeds are concerned, and below average compared to other Sullivan County fiber providers. New Hampshire Electric Co-op offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan County is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
HUB66 Fiber in Sullivan County, NH
HUB66 fiber coverage
About 3.53%, or 1,520 people, have HUB66 fiber internet available to them in the county. The company covers the northeast and north Sullivan County area. HUB66 is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
HUB66 fiber download speeds
HUB66 is the fastest when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, HUB66 fiber is the fastest. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from HUB66 goes up to 8,000 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
HUB66 fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for HUB66 fiber. Compared to other ISPs, HUB66 is the fastest where upload speeds are concerned, and the fastest compared to other Sullivan County fiber providers. HUB66 offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan County is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
Granite State Communications Fiber in Sullivan County, NH
Granite State Communications fiber coverage
About 2.75%, or 1,184 people, have Granite State Communications fiber internet available to them in the county. The company covers the southeast Sullivan County area. Granite State Communications is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of Sullivan County.
Granite State Communications fiber download speeds
Granite State Communications is below average when comparing download speeds to all other internet providers in Sullivan County. Versus other fiber providers in the area, Granite State Communications fiber is one of the slowest. There are no different maximum speeds throughout Sullivan County. The fastest plan anyone in Sullivan County can order from Granite State Communications goes up to 1,000 Mbps, and all Sullivan County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Granite State Communications fiber upload speeds
In Sullivan County download speeds tend to be equal to than upload speeds for Granite State Communications fiber. Compared to other ISPs, Granite State Communications is above average where upload speeds are concerned, and one of the slowest compared to other Sullivan County fiber providers. Granite State Communications offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Sullivan County is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Sullivan County Fiber by Area
This information is most helpful to those looking for homes or considering moving to Sullivan County or any of the areas nearby.
How does fiber internet in Sullivan County compare to the rest of New Hampshire?
Fiber internet speeds in Sullivan County are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 2,299 Mbps in the county. The state has similar fiber availability compared to the county. Average fiber coverage in New Hampshire is 0.00% versus 58.39% in Sullivan County.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Sullivan County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Merrimack County, NH: more fiber coverage, slower speeds
- Washington County, NY: less fiber coverage, slower speeds
- Strafford County, NH: more fiber coverage, slower speeds
- Warren County, NY: less fiber coverage, slower speeds
- York County, ME: less fiber coverage, slower speeds
- Oswego County, NY: less fiber coverage, slower speeds
- Orleans County, NY: less fiber coverage, slower speeds
- Sanilac County, MI: more fiber coverage, slower speeds
- Tuscola County, MI: more fiber coverage, slower speeds
- Saginaw County, MI: less fiber coverage, slower speeds
Counties with Similar Populations
- Campbell County, WY: less fiber coverage, faster speeds
- Tioga County, PA: more fiber coverage, faster speeds
- Chambers County, TX: more fiber coverage, faster speeds
- Cayey Municipio, PR: less fiber coverage, slower speeds
- Cass County, MI: more fiber coverage, faster speeds
- Cass County, IN: more fiber coverage, faster speeds
- Carter County, OK: less fiber coverage, faster speeds
- Carroll County, NH: more fiber coverage, slower speeds
- Caroline County, MD: less fiber coverage, faster speeds
- Carlton County, MN: less fiber coverage, slower speeds