In Portsmouth there are 3 residential Fiber providers covering 81.98% of the neighborhood. The average home can get speeds up to 1,962 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, Portland, OR.
To see availability maps for all providers including fiber, cable, DSL, and more in Portsmouth, Portland, OR please click below.
Portsmouth, Portland, OR Availability Maps
Fiber Internet Service Providers 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?
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Fiber is available in 81.98% of Portsmouth. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Quantum Fiber. 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.
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The average Portsmouth home can get up to 1,962 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 2,000 Mbps, which 78.93% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.29% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in Portsmouth.
Fiber internet speeds tend to be faster in the northwest parts of Portsmouth, and slower in the central areas of the neighborhood.
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 neighborhood.
- Fiber is the fastest internet type for 78.93% of Portsmouth homes.
- Cable is fastest for 21.07% of the neighborhood.
- 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 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.
Quantum Fiber Fiber in Portsmouth, Portland, OR
Quantum Fiber fiber coverage
About 79.77%, or 8,039 people, have Quantum Fiber fiber internet available to them in the neighborhood. The company covers the entire Portsmouth area. Quantum Fiber is one of the largest internet service providers internet service providers in the US, with internet service available in much of Portsmouth.
Quantum Fiber fiber download speeds
Quantum Fiber is the fastest when comparing download speeds to all other internet providers in Portsmouth. Versus other fiber providers in the area, Quantum Fiber fiber is the fastest. There are 2 different maximum speeds throughout Portsmouth. The fastest plan anyone in Portsmouth can order from Quantum Fiber goes up to 2,000 Mbps, the slowest package only goes up to 940 Mbps, and the neighborhood-wide average maximum speed for Portsmouth customers is up to 1,989 Mbps.
Show all download speeds
- 99.0% up to 2,000.0 Mbps
- 1.0% up to 940.0 Mbps
Quantum Fiber fiber upload speeds
In Portsmouth download speeds tend to be faster than than upload speeds for Quantum Fiber fiber. Compared to other ISPs, Quantum Fiber is above average where upload speeds are concerned, and below average compared to other Portsmouth fiber providers. Quantum Fiber offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Portsmouth is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 940 Mbps. On average, Quantum Fiber customers can get speeds up to 999 Mbps.
Show all upload speeds
- 99.0% up to 1,000.0 Mbps
- 1.0% up to 940.0 Mbps
Centurylink Fiber in Portsmouth, Portland, OR
Centurylink fiber coverage
About 76.87%, or 7,747 people, have Centurylink fiber internet available to them in the neighborhood. The company covers the entire Portsmouth area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Portsmouth.
Centurylink fiber download speeds
Centurylink is above average when comparing download speeds to all other internet providers in Portsmouth. Versus other fiber providers in the area, Centurylink fiber is the slowest. There are 6 different maximum speeds throughout Portsmouth. The fastest plan anyone in Portsmouth can order from Centurylink goes up to 1,000 Mbps, the slowest package only goes up to 40 Mbps, and the neighborhood-wide average maximum speed for Portsmouth customers is up to 941 Mbps.
Show all download speeds
- 39.0% up to 1,000.0 Mbps
- 58.4% up to 940.0 Mbps
- 0.4% up to 200.0 Mbps
- 0.6% up to 100.0 Mbps
- 1.0% up to 80.0 Mbps
- 0.6% up to 40.0 Mbps
Centurylink fiber upload speeds
In Portsmouth download speeds tend to be faster than than upload speeds for Centurylink fiber. Compared to other ISPs, Centurylink is above average where upload speeds are concerned, and the slowest compared to other Portsmouth fiber providers. Centurylink offers 7 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Portsmouth is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 5.0 Mbps. On average, Centurylink customers can get speeds up to 816 Mbps.
Show all upload speeds
- 39.0% up to 1,000.0 Mbps
- 41.6% up to 940.0 Mbps
- 17.2% up to 200.0 Mbps
- 0.5% up to 100.0 Mbps
- 0.1% up to 50.0 Mbps
- 1.5% up to 20.0 Mbps
- 0.1% up to 5.0 Mbps
Astound Broadband Fiber in Portsmouth, Portland, OR
Astound Broadband fiber coverage
About 1.68%, or 169 people, have Astound Broadband fiber internet available to them in the neighborhood. The company covers the southwest Portsmouth 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 Portsmouth.
Astound Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Portsmouth. Versus other fiber providers in the area, Astound Broadband fiber is above average. There are no different maximum speeds throughout Portsmouth. The fastest plan anyone in Portsmouth can order from Astound Broadband goes up to 1,500 Mbps, and all Portsmouth customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband fiber upload speeds
In Portsmouth download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is the fastest where upload speeds are concerned, and the fastest compared to other Portsmouth fiber providers. Astound Broadband offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in Portsmouth is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 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 Portland?
Fiber internet speeds in Portsmouth are much faster versus the average speeds in Portland: 0.00 Mbps in Portland versus 1,962 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in Portland is 0.00% versus 81.98% 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 neighborhoods?
Below are neighborhoods nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Neighborhoods
- University Park, Portland, OR: less fiber coverage, faster speeds
- Kenton, Portland, OR: more fiber coverage, faster speeds
- St. Johns, Portland, OR: more fiber coverage, faster speeds
- Cathedral Park, Portland, OR: more fiber coverage, slower speeds
- Arbor Lodge, Portland, OR: more fiber coverage, faster speeds
- Overlook, Portland, OR: more fiber coverage, slower speeds
- Woodlawn, Portland, OR: more fiber coverage, faster speeds
- Bridgeton, Portland, OR: less fiber coverage, faster speeds
- Boise, Portland, OR: more fiber coverage, faster speeds
- Esther Short, Vancouver, WA: less fiber coverage, slower speeds
Neighborhoods with Similar Populations
- Capitol Hill, Salt Lake City, UT: more fiber coverage, faster speeds
- Center, Portland, OR: more fiber coverage, slower speeds
- Faneuil, Brighton, MA: more fiber coverage, slower speeds
- City Center West, Philadelphia, PA: more fiber coverage, slower speeds
- Clark-Fulton, Cleveland, OH: less fiber coverage, faster speeds
- Concordia, Portland, OR: more fiber coverage, faster speeds
- Airport, Riverside, CA: less fiber coverage, faster speeds
- Downtown Minneapolis, St. Paul, MN: less fiber coverage, faster speeds
- East Rock, New Haven, CT: more fiber coverage, faster speeds
- Downtown Pasadena, Pasadena, TX: more fiber coverage, faster speeds