In Alton Bay there are 2 residential Cable providers covering 98.32% of the city. The average home can get speeds up to 1,214 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 Cable internet providers in Alton Bay, NH.
To see availability maps for all providers including fiber, cable, DSL, and more in Alton Bay, NH please click below.
Alton Bay, NH Availability Maps
Cable Internet Service Providers in Alton Bay
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 Alton Bay are not shown.
Alton Bay 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 Alton Bay is cable internet available?
Cable Internet Availability Key
Cable is available in 98.32% of Alton Bay. Areas in green have cable 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 Alton Bay above to see who has service at your home.
How fast is cable internet in Alton Bay?
The map below shows maximum cable internet speeds by area in Alton Bay.
Cable Internet Speed Key
The average Alton Bay home can get up to 1,214 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 21.04% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 77.28% 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 Alton Bay.
Cable internet speeds tend to be faster in the northwest parts of Alton Bay, and slower in the central areas of the city.
Is cable the fastest internet I can get in Alton Bay?
The fastest internet for you may vary based on where in Alton Bay you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 71.92% of Alton Bay homes.
- Cable is fastest for 27.55% 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 Alton Bay homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Alton Bay, along with details on where in Alton Bay and at what speeds.
Atlantic Broadband Cable in Alton Bay, NH
Atlantic Broadband cable coverage
About 98.32%, or 2,402 people, have Atlantic Broadband cable internet available to them in the city. The company covers the entire Alton Bay area. Atlantic Broadband is a large internet service provider internet service providers in the US, with internet service available in most of Alton Bay.
Atlantic Broadband cable download speeds
Atlantic Broadband is above average when comparing download speeds to all other internet providers in Alton Bay. Versus other cable providers in the area, Atlantic Broadband cable is the slowest. There are no different maximum speeds throughout Alton Bay. The fastest plan anyone in Alton Bay can order from Atlantic Broadband goes up to 1,000 Mbps, and all Alton Bay customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Atlantic Broadband cable upload speeds
In Alton Bay download speeds tend to be faster than than upload speeds for Atlantic Broadband cable. Compared to other ISPs, Atlantic Broadband is below average where upload speeds are concerned, and the slowest compared to other Alton Bay cable providers. Atlantic Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alton Bay is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
XFINITY from Comcast Cable in Alton Bay, NH
XFINITY cable coverage
About 21.04%, or 514 people, have XFINITY cable internet available to them in the city. The company covers the northwest Alton Bay area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Alton Bay.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Alton Bay. Versus other cable providers in the area, XFINITY cable is the fastest. There are no different maximum speeds throughout Alton Bay. The fastest plan anyone in Alton Bay can order from XFINITY goes up to 2,000 Mbps, and all Alton Bay customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
XFINITY from Comcast cable upload speeds
In Alton Bay download speeds tend to be faster than than upload speeds for XFINITY cable. Compared to other ISPs, XFINITY is above average where upload speeds are concerned, and the fastest compared to other Alton Bay cable providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alton Bay is up to 250 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 250.0 Mbps
Alton Bay Cable by Area
This information is most helpful to those looking for homes or considering moving to Alton Bay or any of the areas nearby.
How does cable internet in Alton Bay compare to the rest of New Hampshire?
Cable internet speeds in Alton Bay are much faster versus the average speeds in New Hampshire: 0.00 Mbps in New Hampshire versus 1,214 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in New Hampshire is 0.00% versus 98.32% in Alton Bay.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Alton Bay are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable 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
- East Alton, NH: more cable coverage, slower speeds
- Alton, NH: more cable coverage, slower speeds
- Gilmanton Iron Works, NH: more cable coverage, slower speeds
- Wolfeboro Falls, NH: more cable coverage, slower speeds
- Wolfeboro, NH: less cable coverage, slower speeds
- Gilford, NH: more cable coverage, faster speeds
- South Wolfeboro, NH: more cable coverage, slower speeds
- Mirror Lake, NH: less cable coverage, slower speeds
- New Durham, NH: more cable coverage, slower speeds
- Gilmanton, NH: more cable coverage, faster speeds
Cities with Similar Populations
- Atlantic Beach, NY: more cable coverage, slower speeds
- Westmorland, CA: less cable coverage, slower speeds
- Port Sulphur, LA: less cable coverage, faster speeds
- Ronda, NC: less cable coverage, slower speeds
- Gates, NC: less cable coverage, slower speeds
- Mishicot, WI: less cable coverage, slower speeds
- Chester, CA: less cable coverage, slower speeds
- Port Royal, PA: less cable coverage, slower speeds
- Strafford, NH: more cable coverage, slower speeds
- Lauderdale, MS: less cable coverage, slower speeds