In 03878 there are 2 residential Fiber providers covering 97.21% of the zip. The average home can get speeds up to 1,020 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 03878, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in 03878, NH please click below.
Fiber Internet Service Providers in 03878
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 03878 are not shown.
03878 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 03878 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 97.21% of 03878. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Atlantic Broadband. Call one of the companies with service in 03878 above to see who has service at your home.
How fast is fiber internet in 03878?
The map below shows maximum fiber internet speeds by area in 03878.
Fiber Internet Speed Key
The average 03878 home can get up to 1,020 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 2,000 Mbps, which 1.96% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 95.25% 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 03878.
Fiber internet speeds tend to be faster in the northeast parts of 03878, and slower in the west areas of the zip.
Is fiber the fastest internet I can get in 03878?
The fastest internet for you may vary based on where in 03878 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 1.96% of 03878 homes.
- Cable is fastest for 98.04% 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 03878 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 03878, along with details on where in 03878 and at what speeds.
Atlantic Broadband Fiber in 03878, NH
Atlantic Broadband fiber coverage
About 97.21%, or 11,644 people, have Atlantic Broadband fiber internet available to them in the zip. The company covers the entire 03878 area. Atlantic Broadband is a large internet service provider internet service providers in the US, with internet service available in most of 03878.
Atlantic Broadband fiber download speeds
Atlantic Broadband is above average when comparing download speeds to all other internet providers in 03878. Versus other fiber providers in the area, Atlantic Broadband fiber is the slowest. There are no different maximum speeds throughout 03878. The fastest plan anyone in 03878 can order from Atlantic Broadband goes up to 1,000 Mbps, and all 03878 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Atlantic Broadband fiber upload speeds
In 03878 download speeds tend to be faster than than upload speeds for Atlantic Broadband fiber. Compared to other ISPs, Atlantic Broadband is above average where upload speeds are concerned, and the slowest compared to other 03878 fiber providers. Atlantic Broadband offers 2 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 03878 is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 600 Mbps. On average, Atlantic Broadband customers can get speeds up to 603 Mbps.
Show all upload speeds
- 0.6% up to 1,000.0 Mbps
- 99.4% up to 600.0 Mbps
Fidium Fiber Fiber in 03878, NH
Fidium fiber coverage
About 9.11%, or 1,091 people, have Fidium fiber internet available to them in the zip. The company covers the southeast, northeast, east, central, southwest, south, and northwest 03878 area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 03878.
Fidium Fiber fiber download speeds
Fidium is above average when comparing download speeds to all other internet providers in 03878. Versus other fiber providers in the area, Fidium fiber is the fastest. There are 2 different maximum speeds throughout 03878. The fastest plan anyone in 03878 can order from Fidium goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the zip-wide average maximum speed for 03878 customers is up to 1,215 Mbps.
Show all download speeds
- 21.5% up to 2,000.0 Mbps
- 78.5% up to 1,000.0 Mbps
Fidium Fiber fiber upload speeds
In 03878 download speeds tend to be equal to than upload speeds for Fidium fiber. Compared to other ISPs, Fidium is the fastest where upload speeds are concerned, and the fastest compared to other 03878 fiber providers. Fidium offers 2 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 03878 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 1,215 Mbps.
Show all upload speeds
- 21.5% up to 2,000.0 Mbps
- 78.5% up to 1,000.0 Mbps
03878 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 03878 or any of the areas nearby.
How does fiber internet in 03878 compare to the rest of New Hampshire?
Fiber internet speeds in 03878 are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 1,020 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in New Hampshire is 0.00% versus 97.21% in 03878.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 03878 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 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
- 03869, NH: less fiber coverage, faster speeds
- 03901, ME: less fiber coverage, slower speeds
- 03820, NH: less fiber coverage, faster speeds
- 03908, ME: less fiber coverage, slower speeds
- 03867, NH: less fiber coverage, faster speeds
- 03823, NH: less fiber coverage, faster speeds
- 03868, NH: less fiber coverage, faster speeds
- 03906, ME: less fiber coverage, faster speeds
- 03825, NH: less fiber coverage, faster speeds
- 03824, NH: less fiber coverage, faster speeds
Zip Codes with Similar Populations
- 32754, FL: less fiber coverage, faster speeds
- 06076, CT: more fiber coverage, faster speeds
- 08010, NJ: less fiber coverage, faster speeds
- 63645, MO: less fiber coverage, faster speeds
- 14519, NY: less fiber coverage, faster speeds
- 30467, GA: more fiber coverage, faster speeds
- 38572, TN: less fiber coverage, faster speeds
- 44056, OH: less fiber coverage, slower speeds
- 19475, PA: less fiber coverage, faster speeds
- 19153, PA: less fiber coverage, faster speeds