In South Mountain there are 3 residential Fiber providers covering 36.65% of the neighborhood. The average home can get speeds up to 4,154 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 Mountain, Phoenix, AZ.
To see availability maps for all providers including fiber, cable, DSL, and more in South Mountain, Phoenix, AZ please click below.
South Mountain, Phoenix, AZ Availability Maps
Fiber Internet Service Providers in South Mountain
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 Mountain are not shown.
South Mountain 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 Mountain is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 36.65% of South Mountain. 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 South Mountain above to see who has service at your home.
How fast is fiber internet in South Mountain?
The map below shows maximum fiber internet speeds by area in South Mountain.
Fiber Internet Speed Key
The average South Mountain home can get up to 4,154 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 8,000 Mbps, which 13.48% 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 940 Mbps. See the internet provider details below for info about their speed and coverage in South Mountain.
Fiber internet speeds tend to be faster in the north parts of South Mountain, and slower in the east areas of the neighborhood.
Is fiber the fastest internet I can get in South Mountain?
The fastest internet for you may vary based on where in South Mountain you live. In general, cable competes most often with fiber in the neighborhood.
- Fiber is the fastest internet type for 35.56% of South Mountain homes.
- Cable is fastest for 63.16% of the neighborhood.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.24%.
- Satellite internet may be the only option for less than 1% of South Mountain homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in South Mountain, along with details on where in South Mountain and at what speeds.
Quantum Fiber Fiber in South Mountain, Phoenix, AZ
Quantum Fiber fiber coverage
About 33.38%, or 39,081 people, have Quantum Fiber fiber internet available to them in the neighborhood. The company covers the entire South Mountain area. Quantum Fiber is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of South Mountain.
Quantum Fiber fiber download speeds
Quantum Fiber is above average when comparing download speeds to all other internet providers in South Mountain. Versus other fiber providers in the area, Quantum Fiber fiber is above average. There are 4 different maximum speeds throughout South Mountain. The fastest plan anyone in South Mountain 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 South Mountain customers is up to 4,401 Mbps.
Show all download speeds
- 40.4% up to 8,000.0 Mbps
- 57.5% up to 2,000.0 Mbps
- 0.2% up to 1,000.0 Mbps
- 1.9% up to 940.0 Mbps
Quantum Fiber fiber upload speeds
In South Mountain 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 above average compared to other South Mountain fiber providers. Quantum Fiber offers 3 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 South Mountain 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 3,826 Mbps.
Show all upload speeds
- 40.4% up to 8,000.0 Mbps
- 57.7% up to 1,000.0 Mbps
- 1.9% up to 940.0 Mbps
Cox Communications Fiber in South Mountain, Phoenix, AZ
Cox fiber coverage
About 7.16%, or 8,383 people, have Cox fiber internet available to them in the neighborhood. The company covers the entire South Mountain area. Cox is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of South Mountain.
Cox Communications fiber download speeds
Cox is above average when comparing download speeds to all other internet providers in South Mountain. Versus other fiber providers in the area, Cox fiber is below average. There are 2 different maximum speeds throughout South Mountain. The fastest plan anyone in South Mountain can order from Cox goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the neighborhood-wide average maximum speed for South Mountain customers is up to 1,728 Mbps.
Show all download speeds
- 72.8% up to 2,000.0 Mbps
- 27.2% up to 1,000.0 Mbps
Cox Communications fiber upload speeds
In South Mountain download speeds tend to be faster than than upload speeds for Cox fiber. Compared to other ISPs, Cox is below average where upload speeds are concerned, and the slowest compared to other South Mountain fiber providers. Cox offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in South Mountain is up to 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
Centurylink Fiber in South Mountain, Phoenix, AZ
Centurylink fiber coverage
About 5.41%, or 6,336 people, have Centurylink fiber internet available to them in the neighborhood. The company covers the south, north, southwest, southeast, east, northeast, west, and central South Mountain area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of South Mountain.
Centurylink fiber download speeds
Centurylink is below average when comparing download speeds to all other internet providers in South Mountain. Versus other fiber providers in the area, Centurylink fiber is the slowest. There are 3 different maximum speeds throughout South Mountain. The fastest plan anyone in South Mountain can order from Centurylink goes up to 1,000 Mbps, the slowest package only goes up to 200 Mbps, and the neighborhood-wide average maximum speed for South Mountain customers is up to 966 Mbps.
Show all download speeds
- 49.9% up to 1,000.0 Mbps
- 49.5% up to 940.0 Mbps
- 0.5% up to 200.0 Mbps
Centurylink fiber upload speeds
In South Mountain download speeds tend to be faster than than upload speeds for Centurylink fiber. Compared to other ISPs, Centurylink is below average where upload speeds are concerned, and below average compared to other South Mountain fiber providers. Centurylink offers 3 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 South Mountain is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 200 Mbps. On average, Centurylink customers can get speeds up to 941 Mbps.
Show all upload speeds
- 49.9% up to 1,000.0 Mbps
- 46.1% up to 940.0 Mbps
- 3.9% up to 200.0 Mbps
South Mountain Fiber by Area
This information is most helpful to those looking for homes or considering moving to South Mountain or any of the areas nearby.
How does fiber internet in South Mountain compare to the rest of Phoenix?
Fiber internet speeds in South Mountain are much faster versus the average speeds in Phoenix: 0.00 Mbps in Phoenix versus 4,154 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in Phoenix is 0.00% versus 36.65% in South Mountain.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around South Mountain 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
- South Phoenix, Phoenix, AZ: less fiber coverage, slower speeds
- Downtown Phoenix, Phoenix, AZ: less fiber coverage, slower speeds
- Ahwatukee, Phoenix, AZ: more fiber coverage, slower speeds
- Central Phoenix, Phoenix, AZ: less fiber coverage, slower speeds
- Tempe Royal Estates, Tempe, AZ: less fiber coverage, slower speeds
- Peterson, Tempe, AZ: less fiber coverage, slower speeds
- Tempe Junction, Tempe, AZ: more fiber coverage, slower speeds
- Riverside, Tempe, AZ: less fiber coverage, slower speeds
- Encanto, Phoenix, AZ: more fiber coverage, slower speeds
- Bronze Boot, Phoenix, AZ: more fiber coverage, slower speeds
Neighborhoods with Similar Populations
- Bushwick, Brooklyn, NY: more fiber coverage, faster speeds
- Washington Heights, Manhattan, NY: more fiber coverage, slower speeds
- Central, El Paso, TX: more fiber coverage, slower speeds
- Southeast Los Angeles, Los Angeles, CA: more fiber coverage, faster speeds
- Southeast Dallas, Dallas, TX: more fiber coverage, faster speeds
- North Scottsdale, Scottsdale, AZ: more fiber coverage, slower speeds
- North Mountain, Phoenix, AZ: less fiber coverage, slower speeds
- Canarsie, Brooklyn, NY: more fiber coverage, faster speeds
- South Side, Corpus Christi, TX: more fiber coverage, faster speeds
- Camelback East, Phoenix, AZ: more fiber coverage, slower speeds