In Castana there is 1 residential DSL provider covering 9.94% of the city. The average home can get speeds up to 13 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 Castana, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Castana, IA please click below.
DSL Internet Service Provider in Castana
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 Castana are not shown.
Castana 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 Castana is DSL internet available?
DSL Internet Availability Key
DSL is available in 9.94% of Castana. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Windstream. Call one of the companies with service in Castana above to see who has service at your home.
How fast is DSL internet in Castana?
The map below shows maximum DSL internet speeds by area in Castana.
DSL Internet Speed Key
The average Castana home can get up to 13 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 40 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 9.09% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Castana.
DSL internet speeds tend to be faster in the north parts of Castana, and slower in the northeast areas of the city.
Is DSL the fastest internet I can get in Castana?
The fastest internet for you may vary based on where in Castana you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 90.06% of Castana homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 3.13%.
- Satellite internet may be the only option for 6.53% of Castana homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Castana, along with details on where in Castana and at what speeds.
Windstream DSL in Castana, IA
Windstream DSL coverage
About 9.09%, or 32 people, have Windstream DSL internet available to them in the city. The company covers the northeast, east, and southeast Castana area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Castana.
Windstream DSL download speeds
Windstream is one of the slowest when comparing download speeds to all other internet providers in Castana. Versus other DSL providers in the area, Windstream DSL is the slowest. There are no different maximum speeds throughout Castana. The fastest plan anyone in Castana can order from Windstream goes up to 10 Mbps, and all Castana customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Windstream DSL upload speeds
In Castana download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is one of the slowest where upload speeds are concerned, and the slowest compared to other Castana DSL providers. Windstream offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castana is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Castana DSL by Area
This information is most helpful to those looking for homes or considering moving to Castana or any of the areas nearby.
How does DSL internet in Castana compare to the rest of Iowa?
DSL internet speeds in Castana are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 13 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Iowa is 0.00% versus 9.94% in Castana.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Castana 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 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
- Turin, IA: more DSL coverage, faster speeds
- Ticonic, IA: more DSL coverage, faster speeds
- Soldier, IA: more DSL coverage, faster speeds
- Mapleton, IA: more DSL coverage, faster speeds
- Ute, IA: more DSL coverage, faster speeds
- Moorhead, IA: more DSL coverage, faster speeds
- Onawa, IA: more DSL coverage, faster speeds
- Smithland, IA: less DSL coverage, faster speeds
- Blencoe, IA: more DSL coverage, faster speeds
- Whiting, IA: less DSL coverage, faster speeds
Cities with Similar Populations
- Ofahoma, MS: more DSL coverage, faster speeds
- Okreek, SD: more DSL coverage, faster speeds
- Old Bennington, VT: less DSL coverage, slower speeds
- Old Union, TX: more DSL coverage, faster speeds
- Orgas, WV: more DSL coverage, faster speeds
- Ormsby, MN: more DSL coverage, faster speeds
- Orrsburg, MO: less DSL coverage, slower speeds
- Odin, MN: more DSL coverage, faster speeds
- Outwood, PA: more DSL coverage, slower speeds
- Owings, WV: more DSL coverage, slower speeds