In Castlegate there is 1 residential DSL provider covering 72.96% of the neighborhood. The average home can get speeds up to 63 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 DSL internet providers in Castlegate, San Tan Valley, AZ.
To see availability maps for all providers including fiber, cable, DSL, and more in Castlegate, San Tan Valley, AZ please click below.
Castlegate, San Tan Valley, AZ Availability Maps
DSL Internet Service Provider in Castlegate
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 Castlegate are not shown.
Castlegate 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 Castlegate is DSL internet available?
DSL Internet Availability Key
DSL is available in 72.96% of Castlegate. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Centurylink. Call one of the companies with service in Castlegate above to see who has service at your home.
How fast is DSL internet in Castlegate?
The map below shows maximum DSL internet speeds by area in Castlegate.
DSL Internet Speed Key
The average Castlegate home can get up to 63 Mbps on their DSL internet plan. The fastest DSL download speed in the neighborhood is 100 Mbps, which 13.69% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 7.46% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Castlegate.
DSL internet speeds tend to be faster in the southwest parts of Castlegate, and slower in the east areas of the neighborhood.
Is DSL the fastest internet I can get in Castlegate?
The fastest internet for you may vary based on where in Castlegate you live. In general, fiber competes most often with DSL in the neighborhood.
- Fiber is the fastest internet type for 100.00% of Castlegate homes.
- Cable is fastest for less than 1% 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 Castlegate homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Castlegate, along with details on where in Castlegate and at what speeds.
Centurylink DSL in Castlegate, San Tan Valley, AZ
Centurylink DSL coverage
About 72.96%, or 3,298 people, have Centurylink DSL internet available to them in the neighborhood. The company covers the south, southwest, north, west, northwest, east, northeast, and southeast Castlegate area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Castlegate.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Castlegate. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 5 different maximum speeds throughout Castlegate. The fastest plan anyone in Castlegate can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the neighborhood-wide average maximum speed for Castlegate customers is up to 63 Mbps.
Show all download speeds
- 18.8% up to 100.0 Mbps
- 33.7% up to 80.0 Mbps
- 8.9% up to 60.0 Mbps
- 28.4% up to 40.0 Mbps
- 10.2% up to 10.0 Mbps
Centurylink DSL upload speeds
In Castlegate download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is below average where upload speeds are concerned, and the fastest compared to other Castlegate DSL providers. Centurylink offers 4 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 Castlegate is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 6.6 Mbps.
Show all upload speeds
- 52.5% up to 10.0 Mbps
- 8.9% up to 5.0 Mbps
- 28.4% up to 3.0 Mbps
- 10.2% up to 1.0 Mbps
Castlegate DSL by Area
This information is most helpful to those looking for homes or considering moving to Castlegate or any of the areas nearby.
How does DSL internet in Castlegate compare to the rest of San Tan Valley?
DSL internet speeds in Castlegate are much faster versus the average speeds in San Tan Valley: 0.00 Mbps in San Tan Valley versus 63 Mbps in the neighborhood. The city has similar DSL availability compared to the neighborhood. Average DSL coverage in San Tan Valley is 0.00% versus 72.96% in Castlegate.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Castlegate are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL 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
- Pecan Creek, San Tan Valley, AZ: less DSL coverage, faster speeds
- Circle Cross Ranch, San Tan Valley, AZ: less DSL coverage, faster speeds
- Power Ranch, Gilbert, AZ: more DSL coverage, faster speeds
- Palm Springs, Apache Junction, AZ: more DSL coverage, faster speeds
- San Tan Ranch, Gilbert, AZ: more DSL coverage, faster speeds
- Southeast Mesa, Mesa, AZ: more DSL coverage, faster speeds
- Sun Groves, Chandler, AZ: more DSL coverage, faster speeds
- Northeast, Mesa, AZ: more DSL coverage, faster speeds
- Heritage District, Gilbert, AZ: more DSL coverage, faster speeds
- The Islands, Gilbert, AZ: more DSL coverage, faster speeds
Neighborhoods with Similar Populations
- Mullford Gardens, San Leandro, CA: more DSL coverage, faster speeds
- Central Area, Eden, NC: less DSL coverage, slower speeds
- Cottage Park, Mobile, AL: more DSL coverage, slower speeds
- Elvehjem, Madison, WI: more DSL coverage, faster speeds
- Falcon Landing, Katy, TX: less DSL coverage, faster speeds
- Five Points, Detroit, MI: more DSL coverage, faster speeds
- Florida Shores, Edgewater, FL: more DSL coverage, faster speeds
- Fruitdale, Wheat Ridge, CO: more DSL coverage, faster speeds
- Keeney, Manchester, CT: less DSL coverage, slower speeds
- Lower Village District, Claremont, NH: more DSL coverage, slower speeds