In Alameda there are 4 residential Fiber providers covering 87.03% of the city. The average home can get speeds up to 8,199 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 Alameda, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Alameda, CA please click below.
Fiber Internet Service Providers in Alameda
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 Alameda are not shown.
Alameda 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 Alameda is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 87.03% of Alameda. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Sonic. Call one of the companies with service in Alameda above to see who has service at your home.
How fast is fiber internet in Alameda?
The map below shows maximum fiber internet speeds by area in Alameda.
Fiber Internet Speed Key
The average Alameda home can get up to 8,199 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 10,000 Mbps, which 56.43% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% 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 Alameda.
Fiber internet speeds tend to be faster in the central parts of Alameda, and slower in the south areas of the city.
Is fiber the fastest internet I can get in Alameda?
The fastest internet for you may vary based on where in Alameda you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 86.10% of Alameda homes.
- Cable is fastest for 13.41% 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 Alameda homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Alameda, along with details on where in Alameda and at what speeds.
EarthLink Fiber in Alameda, CA
EarthLink fiber coverage
About 84.90%, or 66,477 people, have EarthLink fiber internet available to them in the city. The company covers the entire Alameda area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Alameda.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Alameda. Versus other fiber providers in the area, EarthLink fiber is below average. There are 2 different maximum speeds throughout Alameda. The fastest plan anyone in Alameda can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Alameda customers is up to 4,939 Mbps.
Show all download speeds
- 98.5% up to 5,000.0 Mbps
- 1.5% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Alameda download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and below average compared to other Alameda fiber providers. EarthLink offers 2 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 Alameda is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 4,939 Mbps.
Show all upload speeds
- 98.5% up to 5,000.0 Mbps
- 1.5% up to 1,000.0 Mbps
AT&T Fiber in Alameda, CA
AT&T fiber coverage
About 84.90%, or 66,477 people, have AT&T fiber internet available to them in the city. The company covers the entire Alameda area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Alameda.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Alameda. Versus other fiber providers in the area, AT&T fiber is below average. There are 2 different maximum speeds throughout Alameda. The fastest plan anyone in Alameda can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Alameda customers is up to 4,939 Mbps.
Show all download speeds
- 98.5% up to 5,000.0 Mbps
- 1.5% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Alameda download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is above average where upload speeds are concerned, and below average compared to other Alameda fiber providers. AT&T offers 2 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 Alameda is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 4,939 Mbps.
Show all upload speeds
- 98.5% up to 5,000.0 Mbps
- 1.5% up to 1,000.0 Mbps
Sonic Fiber in Alameda, CA
Sonic fiber coverage
About 56.43%, or 44,183 people, have Sonic fiber internet available to them in the city. The company covers the entire Alameda area. Sonic is a large internet service provider internet service providers in the US, with internet service available in a majority of Alameda.
Sonic fiber download speeds
Sonic is the fastest when comparing download speeds to all other internet providers in Alameda. Versus other fiber providers in the area, Sonic fiber is the fastest. There are no different maximum speeds throughout Alameda. The fastest plan anyone in Alameda can order from Sonic goes up to 10,000 Mbps, and all Alameda customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
Sonic fiber upload speeds
In Alameda download speeds tend to be equal to than upload speeds for Sonic fiber. Compared to other ISPs, Sonic is the fastest where upload speeds are concerned, and the fastest compared to other Alameda fiber providers. Sonic offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Alameda is up to 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
XFINITY from Comcast Fiber in Alameda, CA
XFINITY fiber coverage
About 1.22%, or 959 people, have XFINITY fiber internet available to them in the city. The company covers the northwest and north Alameda 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 Alameda.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in Alameda. Versus other fiber providers in the area, XFINITY fiber is the slowest. There are 2 different maximum speeds throughout Alameda. The fastest plan anyone in Alameda can order from XFINITY goes up to 1,200 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Alameda customers is up to 1,049 Mbps.
Show all download speeds
- 24.4% up to 1,200.0 Mbps
- 75.6% up to 1,000.0 Mbps
XFINITY from Comcast fiber upload speeds
In Alameda download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other Alameda fiber providers. XFINITY offers 2 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 Alameda is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, XFINITY customers can get speeds up to 765 Mbps.
Show all upload speeds
- 75.6% up to 1,000.0 Mbps
- 24.4% up to 35.0 Mbps
Alameda Fiber by Area
This information is most helpful to those looking for homes or considering moving to Alameda or any of the areas nearby.
How does fiber internet in Alameda compare to the rest of California?
Fiber internet speeds in Alameda are much faster versus the average speeds in California: 0.00 Mbps in California versus 8,199 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in California is 0.00% versus 87.03% in Alameda.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Alameda 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
- Oakland, CA: more fiber coverage, faster speeds
- Piedmont, CA: more fiber coverage, faster speeds
- Emeryville, CA: less fiber coverage, slower speeds
- Canyon, CA: less fiber coverage, slower speeds
- San Leandro, CA: more fiber coverage, faster speeds
- Berkeley, CA: more fiber coverage, slower speeds
- Orinda Village, CA: less fiber coverage, slower speeds
- Albany, CA: less fiber coverage, slower speeds
- Ashland, CA: more fiber coverage, faster speeds
- San Lorenzo, CA: more fiber coverage, faster speeds
Cities with Similar Populations
- Norfolk, VA: less fiber coverage, slower speeds
- Laredo, TX: less fiber coverage, slower speeds
- Bronx, NY: more fiber coverage, slower speeds
- Brooklyn, NY: more fiber coverage, slower speeds
- Brownsville, TX: less fiber coverage, slower speeds
- Evanston, IL: less fiber coverage, slower speeds
- Arlington, VA: more fiber coverage, slower speeds
- Auburn, AL: less fiber coverage, slower speeds
- Corona, CA: less fiber coverage, slower speeds
- Cypress, TX: more fiber coverage, slower speeds