In Portsmouth there is 1 residential Fiber provider covering 73.30% of the city. The average home can get speeds up to 1,000 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 Portsmouth, RI.
To see availability maps for all providers including fiber, cable, DSL, and more in Portsmouth, RI please click below.
Portsmouth, RI Availability Maps
Fiber Internet Service Provider in Portsmouth
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 Portsmouth are not shown.
Portsmouth 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 Portsmouth is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 73.30% of Portsmouth. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Cox. Call one of the companies with service in Portsmouth above to see who has service at your home.
How fast is fiber internet in Portsmouth?
The map below shows maximum fiber internet speeds by area in Portsmouth.
Fiber Internet Speed Key
The average Portsmouth home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 1,000 Mbps, which 73.30% of residents can get.
Is fiber the fastest internet I can get in Portsmouth?
The fastest internet for you may vary based on where in Portsmouth you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 53.69% of Portsmouth homes.
- Cable is fastest for 44.87% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.32%.
- Satellite internet may be the only option for less than 1% of Portsmouth homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Portsmouth, along with details on where in Portsmouth and at what speeds.
Cox Communications Fiber in Portsmouth, RI
Cox fiber coverage
About 73.30%, or 12,684 people, have Cox fiber internet available to them in the city. The company covers the entire Portsmouth area. Cox is one of the largest internet service providers internet service providers in the US, with internet service available in much of Portsmouth.
Cox Communications fiber download speeds
Cox is above average when comparing download speeds to all other internet providers in Portsmouth. Versus other fiber providers in the area, Cox fiber is the fastest. There are no different maximum speeds throughout Portsmouth. The fastest plan anyone in Portsmouth can order from Cox goes up to 1,000 Mbps, and all Portsmouth customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Cox Communications fiber upload speeds
In Portsmouth download speeds tend to be faster than than upload speeds for Cox fiber. Compared to other ISPs, Cox is the fastest where upload speeds are concerned, and the fastest compared to other Portsmouth fiber providers. Cox offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Portsmouth is up to 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
Portsmouth Fiber by Area
This information is most helpful to those looking for homes or considering moving to Portsmouth or any of the areas nearby.
How does fiber internet in Portsmouth compare to the rest of Rhode Island?
Fiber internet speeds in Portsmouth are much faster versus the average speeds in Rhode Island: 0.00 Mbps in Rhode Island versus 1,000 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Rhode Island is 0.00% versus 73.30% in Portsmouth.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Portsmouth 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 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
- Middletown, RI: less fiber coverage, similar speeds
- Tiverton, RI: less fiber coverage, similar speeds
- Newport East, RI: less fiber coverage, similar speeds
- Bristol, RI: less fiber coverage, slower speeds
- Newport, RI: more fiber coverage, similar speeds
- Jamestown, RI: more fiber coverage, similar speeds
- Fall River, MA: less fiber coverage, similar speeds
- Warren, RI: less fiber coverage, faster speeds
- North Kingstown, RI: more fiber coverage, slower speeds
- Swansea, MA: less fiber coverage, slower speeds
Cities with Similar Populations
- Spearfish, SD: less fiber coverage, faster speeds
- Firestone, CO: more fiber coverage, faster speeds
- Scott, LA: less fiber coverage, faster speeds
- Selma, NC: less fiber coverage, faster speeds
- Senoia, GA: more fiber coverage, faster speeds
- Smithfield, VA: less fiber coverage, slower speeds
- South Hadley, MA: more fiber coverage, similar speeds
- South Ogden, UT: less fiber coverage, faster speeds
- South River, NJ: less fiber coverage, faster speeds
- Spanish Springs, NV: less fiber coverage, faster speeds