In Interbay there are 4 residential Fiber providers covering 95.33% of the neighborhood. The average home can get speeds up to 2,811 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 Interbay, Seattle, WA.
To see availability maps for all providers including fiber, cable, DSL, and more in Interbay, Seattle, WA please click below.
Interbay, Seattle, WA Availability Maps
Fiber Internet Service Providers in Interbay
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 Interbay are not shown.
Interbay 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 Interbay is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 95.33% of Interbay. 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 Interbay above to see who has service at your home.
How fast is fiber internet in Interbay?
The map below shows maximum fiber internet speeds by area in Interbay.

Fiber Internet Speed Key
The average Interbay home can get up to 2,811 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 8,000 Mbps, which 12.52% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.45% 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 Interbay.
Fiber internet speeds tend to be faster in the northwest parts of Interbay, and slower in the south areas of the neighborhood.
Is fiber the fastest internet I can get in Interbay?
The fastest internet for you may vary based on where in Interbay you live. In general, cable competes most often with fiber in the neighborhood.
- Fiber is the fastest internet type for 39.40% of Interbay homes.
- Cable is fastest for 60.49% 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 Interbay homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Interbay, along with details on where in Interbay and at what speeds.
Quantum Fiber Fiber in Interbay, Seattle, WA

Quantum Fiber fiber coverage
About 91.96%, or 10,693 people, have Quantum Fiber fiber internet available to them in the neighborhood. The company covers the entire Interbay area. Quantum Fiber is one of the largest internet service providers internet service providers in the US, with internet service available in most of Interbay.
Quantum Fiber fiber download speeds
Quantum Fiber is the fastest when comparing download speeds to all other internet providers in Interbay. Versus other fiber providers in the area, Quantum Fiber fiber is the fastest. There are 5 different maximum speeds throughout Interbay. The fastest plan anyone in Interbay can order from Quantum Fiber goes up to 8,000 Mbps, the slowest package only goes up to 940 Mbps, and the neighborhood-wide average maximum speed for Interbay customers is up to 2,774 Mbps.
Show all download speeds
- 13.6% up to 8,000.0 Mbps
- 3.9% up to 3,000.0 Mbps
- 74.5% up to 2,000.0 Mbps
- 3.1% up to 1,000.0 Mbps
- 4.8% up to 940.0 Mbps
Quantum Fiber fiber upload speeds
In Interbay download speeds tend to be faster than than upload speeds for Quantum Fiber fiber. Compared to other ISPs, Quantum Fiber is the fastest where upload speeds are concerned, and the fastest compared to other Interbay fiber providers. Quantum Fiber offers 4 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 Interbay is up to 8,000 Mbps. Some customers have slower plan choices, which only go up to 940 Mbps. On average, Quantum Fiber customers can get speeds up to 2,029 Mbps.
Show all upload speeds
- 13.6% up to 8,000.0 Mbps
- 3.9% up to 3,000.0 Mbps
- 77.6% up to 1,000.0 Mbps
- 4.8% up to 940.0 Mbps
Centurylink Fiber in Interbay, Seattle, WA

Centurylink fiber coverage
About 81.85%, or 9,518 people, have Centurylink fiber internet available to them in the neighborhood. The company covers the entire Interbay area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Interbay.
Centurylink fiber download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Interbay. Versus other fiber providers in the area, Centurylink fiber is the slowest. There are 4 different maximum speeds throughout Interbay. The fastest plan anyone in Interbay can order from Centurylink goes up to 1,000 Mbps, the slowest package only goes up to 100 Mbps, and the neighborhood-wide average maximum speed for Interbay customers is up to 981 Mbps.
Show all download speeds
- 81.0% up to 1,000.0 Mbps
- 18.1% up to 940.0 Mbps
- 0.5% up to 200.0 Mbps
- 0.4% up to 100.0 Mbps
Centurylink fiber upload speeds
In Interbay 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 below average compared to other Interbay fiber providers. Centurylink offers 4 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 Interbay is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 50 Mbps. On average, Centurylink customers can get speeds up to 942 Mbps.
Show all upload speeds
- 81.0% up to 1,000.0 Mbps
- 12.8% up to 940.0 Mbps
- 5.8% up to 200.0 Mbps
- 0.4% up to 50.0 Mbps
Astound Broadband Fiber in Interbay, Seattle, WA

Astound Broadband fiber coverage
About 26.32%, or 3,060 people, have Astound Broadband fiber internet available to them in the neighborhood. The company covers the northwest, north, southeast, southwest, west, and central Interbay area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Interbay.
Astound Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Interbay. Versus other fiber providers in the area, Astound Broadband fiber is above average. There are no different maximum speeds throughout Interbay. The fastest plan anyone in Interbay can order from Astound Broadband goes up to 2,000 Mbps, and all Interbay customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Astound Broadband fiber upload speeds
In Interbay download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is above average where upload speeds are concerned, and above average compared to other Interbay fiber providers. Astound Broadband offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in Interbay is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
XFINITY from Comcast Fiber in Interbay, Seattle, WA

XFINITY fiber coverage
About 5.14%, or 598 people, have XFINITY fiber internet available to them in the neighborhood. The company covers the north, southeast, and east Interbay area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Interbay.
XFINITY from Comcast fiber download speeds
XFINITY is above average when comparing download speeds to all other internet providers in Interbay. Versus other fiber providers in the area, XFINITY fiber is below average. There are 2 different maximum speeds throughout Interbay. The fastest plan anyone in Interbay can order from XFINITY goes up to 2,000 Mbps, the slowest package only goes up to 1,200 Mbps, and the neighborhood-wide average maximum speed for Interbay customers is up to 1,508 Mbps.
Show all download speeds
- 38.5% up to 2,000.0 Mbps
- 61.5% up to 1,200.0 Mbps
XFINITY from Comcast fiber upload speeds
In Interbay download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is above average where upload speeds are concerned, and the slowest compared to other Interbay fiber providers. XFINITY 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 Interbay 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 791 Mbps.
Show all upload speeds
- 38.5% up to 2,000.0 Mbps
- 61.5% up to 35.0 Mbps
Interbay Fiber by Area
This information is most helpful to those looking for homes or considering moving to Interbay or any of the areas nearby.
How does fiber internet in Interbay compare to the rest of Seattle?
Fiber internet speeds in Interbay are much faster versus the average speeds in Seattle: 0.00 Mbps in Seattle versus 2,811 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in Seattle is 0.00% versus 95.33% in Interbay.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Interbay 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
- Queen Anne, Seattle, WA: less fiber coverage, faster speeds
- Magnolia, Seattle, WA: less fiber coverage, slower speeds
- Fremont, Seattle, WA: more fiber coverage, slower speeds
- Westlake, Seattle, WA: more fiber coverage, faster speeds
- Uptown, Seattle, WA: less fiber coverage, slower speeds
- Ballard, Seattle, WA: more fiber coverage, faster speeds
- Wallingford, Seattle, WA: more fiber coverage, slower speeds
- Eastlake, Seattle, WA: more fiber coverage, slower speeds
- Sunset Hill, Seattle, WA: more fiber coverage, slower speeds
- South Lake Union, Seattle, WA: more fiber coverage, slower speeds
Neighborhoods with Similar Populations
- Indian Hills-Stonewall Estates-Monticello, Lexington, KY: more fiber coverage, faster speeds
- Steele Creek, Charlotte, NC: more fiber coverage, faster speeds
- Roosevelt Island, Manhattan, NY: less fiber coverage, slower speeds
- Reservoir Hill-Bolton Hill, Baltimore, MD: less fiber coverage, slower speeds
- Russian Jack Park, Anchorage, AK: less fiber coverage, slower speeds
- Old North Milwaukee, Milwaukee, WI: less fiber coverage, faster speeds
- Oakdale, Atlanta, GA: less fiber coverage, faster speeds
- Mount Pleasant, Providence, RI: more fiber coverage, slower speeds
- Serrano Village, El Dorado Hills, CA: less fiber coverage, slower speeds
- Sexton Mountain, Beaverton, OR: more fiber coverage, faster speeds


