In South Los Altos there are 2 residential Fiber providers covering 65.92% of the neighborhood. The average home can get speeds up to 5,000 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 South Los Altos, Los Altos, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in South Los Altos, Los Altos, CA please click below.
South Los Altos, Los Altos, CA Availability Maps
Fiber Internet Service Providers in South 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 South Los Altos are not shown.
South 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 South Los Altos is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 65.92% of South 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 South Los Altos above to see who has service at your home.
How fast is fiber internet in South Los Altos?
The map below shows maximum fiber internet speeds by area in South Los Altos.
Fiber Internet Speed Key
The average South Los Altos home can get up to 5,000 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 5,000 Mbps, which 65.92% of residents can get.
Is fiber the fastest internet I can get in South Los Altos?
The fastest internet for you may vary based on where in South Los Altos you live. In general, cable competes most often with fiber in the neighborhood.
- Fiber is the fastest internet type for 65.92% of South Los Altos homes.
- Cable is fastest for 34.08% 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 South Los Altos homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in South Los Altos, along with details on where in South Los Altos and at what speeds.
EarthLink Fiber in South Los Altos, Los Altos, CA
EarthLink fiber coverage
About 65.92%, or 4,161 people, have EarthLink fiber internet available to them in the neighborhood. The company covers the northwest, west, north, east, northeast, south, and southwest South Los Altos area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of South Los Altos.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in South Los Altos. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are no different maximum speeds throughout South Los Altos. The fastest plan anyone in South Los Altos can order from EarthLink goes up to 5,000 Mbps, and all South Los Altos customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
EarthLink fiber upload speeds
In South 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 South Los Altos fiber providers. EarthLink offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in South Los Altos is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
AT&T Fiber in South Los Altos, Los Altos, CA
AT&T fiber coverage
About 65.92%, or 4,161 people, have AT&T fiber internet available to them in the neighborhood. The company covers the northwest, west, north, east, northeast, south, and southwest 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 much of South Los Altos.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in South Los Altos. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are no different maximum speeds throughout South Los Altos. The fastest plan anyone in South Los Altos can order from AT&T goes up to 5,000 Mbps, and all South Los Altos customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
AT&T fiber upload speeds
In South 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 South Los Altos fiber providers. AT&T offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in South Los Altos is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
South Los Altos Fiber by Area
This information is most helpful to those looking for homes or considering moving to South Los Altos or any of the areas nearby.
How does fiber internet in South Los Altos compare to the rest of Los Altos?
Fiber internet speeds in South Los Altos are much faster versus the average speeds in Los Altos: 0.00 Mbps in Los Altos versus 5,000 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in Los Altos is 0.00% versus 65.92% in South Los Altos.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around South 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 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
- Sunnyvale West, Sunnyvale, CA: less fiber coverage, slower speeds
- Martens-Carmelita, Mountain View, CA: less fiber coverage, slower speeds
- Cuesta Park, Mountain View, CA: more fiber coverage, slower speeds
- Heritage District, Sunnyvale, CA: less fiber coverage, slower speeds
- Old Mountain View, Mountain View, CA: more fiber coverage, slower speeds
- Whisman Station, Mountain View, CA: more fiber coverage, slower speeds
- Birdland Neighbors, Sunnyvale, CA: less fiber coverage, similar speeds
- Ponderosa Park, Sunnyvale, CA: less fiber coverage, similar speeds
- Rancho Rinconada, Cupertino, CA: more fiber coverage, slower speeds
- Lowlanders, Sunnyvale, CA: less fiber coverage, slower speeds
Neighborhoods with Similar Populations
- Arlingwood, Jacksonville, FL: more fiber coverage, faster speeds
- Bouldin, Austin, TX: more fiber coverage, faster speeds
- Brookland, Washington, DC: more fiber coverage, slower speeds
- Brookside, Tulsa, OK: more fiber coverage, slower speeds
- Cal-Gisler, Oxnard, CA: more fiber coverage, faster speeds
- Coronado, Kansas City, KS: more fiber coverage, faster speeds
- Corbett, Tucson, AZ: less fiber coverage, faster speeds
- Salt Springs, Syracuse, NY: more fiber coverage, slower speeds
- North Redmond, Redmond, WA: more fiber coverage, faster speeds
- Park Crossing, Charlotte, NC: more fiber coverage, faster speeds