In 85621 there is 1 residential Fiber provider covering 12.19% of the zip. The average home can get speeds up to 1,000 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 85621, AZ.
To see availability maps for all providers including fiber, cable, DSL, and more in 85621, AZ please click below.
Fiber Internet Service Provider in 85621
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 85621 are not shown.
85621 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 85621 is fiber internet available?
100%
Colorblind friendly
off
Fiber is available in 12.19% of 85621. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Mediacom. Call one of the companies with service in 85621 above to see who has service at your home.
How fast is fiber internet in 85621?
The map below shows maximum fiber internet speeds by area in 85621.
1000 Mbps+
Colorblind friendly
off
The average 85621 home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 1,000 Mbps, which 12.19% of residents can get.
Is fiber the fastest internet I can get in 85621?
The fastest internet for you may vary based on where in 85621 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 12.19% of 85621 homes.
- Cable is fastest for 84.54% of the zip.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 2.54%.
- Satellite internet may be the only option for less than 1% of 85621 homes.
Fiber Providers in Depth
Below you’ll find which TV and internet providers offer service in 85621, along with details on where in 85621 and at what speeds.
Mediacom Fiber in 85621, AZ
Mediacom fiber coverage
About 12.19%, or 2,652 people, have Mediacom fiber internet available to them in the zip. The company covers the southwest, west, central, east, south, northwest, and southeast 85621 area. Mediacom is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 85621.
Mediacom fiber download speeds
Mediacom is below average when comparing download speeds to all other internet providers in 85621. Versus other fiber providers in the area, Mediacom fiber is the fastest. There are no different maximum speeds throughout 85621. The fastest plan anyone in 85621 can order from Mediacom goes up to 1,000 Mbps, and all 85621 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mediacom fiber upload speeds
In 85621 download speeds tend to be faster than than upload speeds for Mediacom fiber. Compared to other ISPs, Mediacom is below average where upload speeds are concerned, and the fastest compared to other 85621 fiber providers. Mediacom offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 85621 is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
85621 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 85621 or any of the areas nearby.
How does fiber internet in 85621 compare to the rest of Arizona?
Fiber internet speeds in 85621 are much faster versus the average speeds in Arizona: 0.00 Mbps in Arizona versus 1,000 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Arizona is 0.00% versus 12.19% in 85621.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 85621 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 zip codes?
Below are zip codes nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Zip Codes
- 85648, AZ: less fiber coverage, similar speeds
- 85650, AZ: less fiber coverage, faster speeds
- 85615, AZ: more fiber coverage, faster speeds
- 85626, AZ: more fiber coverage, similar speeds
- 85607, AZ: more fiber coverage, slower speeds
- 79853, TX: more fiber coverage, faster speeds
- 79839, TX: less fiber coverage, similar speeds
- 79772, TX: more fiber coverage, faster speeds
- 79719, TX: less fiber coverage, similar speeds
- 79731, TX: less fiber coverage, similar speeds
Zip Codes with Similar Populations
- 02891, RI: more fiber coverage, slower speeds
- 04011, ME: more fiber coverage, faster speeds
- 07719, NJ: more fiber coverage, faster speeds
- 13820, NY: more fiber coverage, similar speeds
- 54904, WI: more fiber coverage, faster speeds
- 73135, OK: more fiber coverage, faster speeds
- 73008, OK: more fiber coverage, faster speeds
- 71037, LA: more fiber coverage, faster speeds
- 68106, NE: more fiber coverage, faster speeds
- 66208, KS: more fiber coverage, faster speeds