In Belmont there are 2 residential Cable providers covering 99.91% of the city. The average home can get speeds up to 1,977 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 Belmont, MA.
To see availability maps for all providers including fiber, cable, DSL, and more in Belmont, MA please click below.
Cable Internet Service Providers in Belmont
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 Belmont are not shown.
Belmont 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 Belmont is cable internet available?
Cable Internet Availability Key
Cable is available in 99.91% of Belmont. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is XFINITY. Call one of the companies with service in Belmont above to see who has service at your home.
How fast is cable internet in Belmont?
The map below shows maximum cable internet speeds by area in Belmont.
Cable Internet Speed Key
The average Belmont home can get up to 1,977 Mbps on their cable internet plan. The fastest cable download speed in the city is 2,000 Mbps, which 97.08% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 2.84% of homes can only purchase plans up to 1,200 Mbps. See the internet provider details below for info about their speed and coverage in Belmont.
Cable internet speeds tend to be faster in the west parts of Belmont, and slower in the northeast areas of the city.
Is cable the fastest internet I can get in Belmont?
The fastest internet for you may vary based on where in Belmont you live. In general, fiber competes most often with cable in the city.
- Fiber is the fastest internet type for 2.84% of Belmont homes.
- Cable is fastest for 97.08% 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 Belmont homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Belmont, along with details on where in Belmont and at what speeds.
XFINITY from Comcast Cable in Belmont, MA
XFINITY cable coverage
About 99.91%, or 26,420 people, have XFINITY cable internet available to them in the city. The company covers the entire Belmont area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in most of Belmont.
XFINITY from Comcast cable download speeds
XFINITY is the fastest when comparing download speeds to all other internet providers in Belmont. Versus other cable providers in the area, XFINITY cable is the fastest. There are 2 different maximum speeds throughout Belmont. The fastest plan anyone in Belmont can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the city-wide average maximum speed for Belmont customers is up to 1,977 Mbps.
Show all download speeds
- 97.2% up to 2,000.0 Mbps
- 2.8% up to 1,200.0 Mbps
XFINITY from Comcast cable upload speeds
In Belmont 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 Belmont cable providers. XFINITY offers 3 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 Belmont is up to 2,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 364 Mbps.
Show all upload speeds
- 6.9% up to 2,000.0 Mbps
- 90.3% up to 250.0 Mbps
- 2.8% up to 35.0 Mbps
Astound Broadband Cable in Belmont, MA
Astound Broadband cable coverage
About 12.35%, or 3,266 people, have Astound Broadband cable internet available to them in the city. The company covers the southwest, southeast, northeast, northwest, west, and south Belmont area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Belmont.
Astound Broadband cable download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Belmont. Versus other cable providers in the area, Astound Broadband cable is the slowest. There are no different maximum speeds throughout Belmont. The fastest plan anyone in Belmont can order from Astound Broadband goes up to 1,500 Mbps, and all Belmont customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband cable upload speeds
In Belmont download speeds tend to be faster than than upload speeds for Astound Broadband cable. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and the slowest compared to other Belmont cable providers. Astound Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Belmont is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Belmont Cable by Area
This information is most helpful to those looking for homes or considering moving to Belmont or any of the areas nearby.
How does cable internet in Belmont compare to the rest of Massachusetts?
Cable internet speeds in Belmont are much faster versus the average speeds in Massachusetts: 0.00 Mbps in Massachusetts versus 1,977 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in Massachusetts is 0.00% versus 99.91% in Belmont.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Belmont 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
- Watertown, MA: more cable coverage, faster speeds
- Watertown Town, MA: less cable coverage, slower speeds
- Arlington, MA: less cable coverage, faster speeds
- Newtonville, MA: more cable coverage, faster speeds
- Newton, MA: more cable coverage, faster speeds
- Brighton, MA: less cable coverage, slower speeds
- Waltham, MA: less cable coverage, slower speeds
- Allston, MA: less cable coverage, slower speeds
- Cambridge, MA: less cable coverage, slower speeds
- Somerville, MA: less cable coverage, slower speeds
Cities with Similar Populations
- York, SC: less cable coverage, slower speeds
- Amelia, OH: more cable coverage, slower speeds
- Yelm, WA: less cable coverage, slower speeds
- Belton, MO: less cable coverage, slower speeds
- Watertown, WI: less cable coverage, slower speeds
- Horn Lake, MS: less cable coverage, slower speeds
- Hatillo, PR: less cable coverage, slower speeds
- Hastings, MN: less cable coverage, slower speeds
- Murrells Inlet, SC: less cable coverage, slower speeds
- Macungie, PA: less cable coverage, slower speeds