In Los Altos there are 4 residential Fiber providers covering 85.45% of the city. The average home can get speeds up to 4,996 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 Los Altos, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Los Altos, CA please click below.
Los Altos, CA Availability Maps
Fiber Internet Service Providers in Los Altos
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 Los Altos are not shown.
Los Altos 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 Los Altos is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 85.45% of Los Altos. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Los Altos above to see who has service at your home.
How fast is fiber internet in Los Altos?
The map below shows maximum fiber internet speeds by area in Los Altos.
Fiber Internet Speed Key
The average Los Altos home can get up to 4,996 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 5,000 Mbps, which 85.36% 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 Los Altos.
Fiber internet speeds tend to be faster in the southeast parts of Los Altos, and slower in the northwest areas of the city.
Is fiber the fastest internet I can get in Los Altos?
The fastest internet for you may vary based on where in Los Altos you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 85.36% of Los Altos homes.
- Cable is fastest for 13.54% 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 Los Altos homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Los Altos, along with details on where in Los Altos and at what speeds.
EarthLink Fiber in Los Altos, CA
EarthLink fiber coverage
About 85.45%, or 32,750 people, have EarthLink fiber internet available to them in the city. The company covers the southeast, northwest, central, north, east, west, and south Los Altos area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Los Altos.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Los Altos. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are 2 different maximum speeds throughout Los Altos. The fastest plan anyone in Los Altos 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 Los Altos customers is up to 4,996 Mbps.
Show all download speeds
- 99.9% up to 5,000.0 Mbps
- 0.1% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Los Altos download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Los Altos 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 Los Altos 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 4,996 Mbps.
Show all upload speeds
- 99.9% up to 5,000.0 Mbps
- 0.1% up to 1,000.0 Mbps
AT&T Fiber in Los Altos, CA
AT&T fiber coverage
About 85.45%, or 32,750 people, have AT&T fiber internet available to them in the city. The company covers the southeast, northwest, central, north, east, west, and south Los Altos area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of Los Altos.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Los Altos. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are 2 different maximum speeds throughout Los Altos. The fastest plan anyone in Los Altos 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 Los Altos customers is up to 4,996 Mbps.
Show all download speeds
- 99.9% up to 5,000.0 Mbps
- 0.1% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Los Altos download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Los Altos 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 Los Altos 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 4,996 Mbps.
Show all upload speeds
- 99.9% up to 5,000.0 Mbps
- 0.1% up to 1,000.0 Mbps
Astound Broadband Fiber in Los Altos, CA
Astound Broadband fiber coverage
About 2.05%, or 787 people, have Astound Broadband fiber internet available to them in the city. The company covers the north Los Altos 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 Los Altos.
Astound Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Los Altos. Versus other fiber providers in the area, Astound Broadband fiber is below average. There are no different maximum speeds throughout Los Altos. The fastest plan anyone in Los Altos can order from Astound Broadband goes up to 1,500 Mbps, and all Los Altos customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband fiber upload speeds
In Los Altos 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 below average compared to other Los Altos fiber providers. Astound Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Los Altos is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 Mbps
XFINITY from Comcast Fiber in Los Altos, CA
XFINITY fiber coverage
About 1.78%, or 684 people, have XFINITY fiber internet available to them in the city. The company covers the north Los Altos 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 Los Altos.
XFINITY from Comcast fiber download speeds
XFINITY is average when comparing download speeds to all other internet providers in Los Altos. Versus other fiber providers in the area, XFINITY fiber is the slowest. There are no different maximum speeds throughout Los Altos. The fastest plan anyone in Los Altos can order from XFINITY goes up to 1,200 Mbps, and all Los Altos customers can get this speed.
Show all download speeds
- 100.0% up to 1,200.0 Mbps
XFINITY from Comcast fiber upload speeds
In Los Altos 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 Los Altos fiber providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Los Altos is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Los Altos Fiber by Area
This information is most helpful to those looking for homes or considering moving to Los Altos or any of the areas nearby.
How does fiber internet in Los Altos compare to the rest of California?
Fiber internet speeds in Los Altos are much faster versus the average speeds in California: 0.00 Mbps in California versus 4,996 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in California is 0.00% versus 85.45% in Los Altos.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Los Altos 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
- Mountain View, CA: less fiber coverage, slower speeds
- Los Altos Hills, CA: less fiber coverage, faster speeds
- Sunnyvale, CA: less fiber coverage, slower speeds
- Cupertino, CA: less fiber coverage, slower speeds
- Palo Alto, CA: less fiber coverage, slower speeds
- Stanford, CA: less fiber coverage, faster speeds
- Portola Valley, CA: less fiber coverage, slower speeds
- Santa Clara, CA: less fiber coverage, slower speeds
- East Palo Alto, CA: less fiber coverage, faster speeds
- Menlo Park, CA: more fiber coverage, faster speeds
Cities with Similar Populations
- Indian Trail, NC: more fiber coverage, slower speeds
- Long Beach, NY: more fiber coverage, faster speeds
- Linton Hall, VA: more fiber coverage, slower speeds
- Laurel, MS: less fiber coverage, slower speeds
- Lake Wales, FL: less fiber coverage, slower speeds
- La Quinta, CA: more fiber coverage, faster speeds
- La Puente, CA: more fiber coverage, faster speeds
- Kearney, NE: more fiber coverage, slower speeds
- Jamestown, NY: more fiber coverage, slower speeds
- Saratoga Springs, NY: less fiber coverage, slower speeds