In Alamosa County there are 2 residential DSL providers covering 85.85% of the county. The average home can get speeds up to 25 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 Alamosa County, CO.
To see availability maps for all providers including fiber, cable, DSL, and more in Alamosa County, CO please click below.
Alamosa County, CO Availability Maps
DSL Internet Service Providers in Alamosa County
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 Alamosa County are not shown.
Alamosa County 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 Alamosa County is DSL internet available?
DSL Internet Availability Key
DSL is available in 85.85% of Alamosa County. 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 Alamosa County above to see who has service at your home.
How fast is DSL internet in Alamosa County?
The map below shows maximum DSL internet speeds by area in Alamosa County.
DSL Internet Speed Key
The average Alamosa County home can get up to 25 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 100 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, 56.62% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Alamosa County.
DSL internet speeds tend to be faster in the southeast parts of Alamosa County, and slower in the south areas of the county.
Is DSL the fastest internet I can get in Alamosa County?
The fastest internet for you may vary based on where in Alamosa County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 60.29% of Alamosa County homes.
- Cable is fastest for 28.11% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 5.87%.
- Satellite internet may be the only option for 5.21% of Alamosa County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Alamosa County, along with details on where in Alamosa County and at what speeds.
Centurylink DSL in Alamosa County, CO
Centurylink DSL coverage
About 81.78%, or 13,392 people, have Centurylink DSL internet available to them in the county. The company covers the entire Alamosa County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Alamosa County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Alamosa County. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 5 different maximum speeds throughout Alamosa County. The fastest plan anyone in Alamosa County can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Alamosa County customers is up to 26 Mbps.
Show all download speeds
- 1.0% up to 100.0 Mbps
- 0.3% up to 80.0 Mbps
- 20.8% up to 60.0 Mbps
- 13.6% up to 40.0 Mbps
- 64.3% up to 10.0 Mbps
Centurylink DSL upload speeds
In Alamosa County 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 Alamosa County DSL providers. Centurylink offers 5 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Alamosa County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 2.3 Mbps.
Show all upload speeds
- 0.5% up to 20.0 Mbps
- 1.3% up to 10.0 Mbps
- 22.3% up to 5.0 Mbps
- 11.7% up to 3.0 Mbps
- 64.3% up to 1.0 Mbps
Fidium Fiber DSL in Alamosa County, CO
Fidium DSL coverage
About 4.14%, or 678 people, have Fidium DSL internet available to them in the county. The company covers the northeast, northwest, and north Alamosa County area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Alamosa County.
Fidium Fiber DSL download speeds
Fidium is the slowest when comparing download speeds to all other internet providers in Alamosa County. Versus other DSL providers in the area, Fidium DSL is the slowest. There are no different maximum speeds throughout Alamosa County. The fastest plan anyone in Alamosa County can order from Fidium goes up to 10 Mbps, and all Alamosa County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In Alamosa County download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is the slowest where upload speeds are concerned, and the slowest compared to other Alamosa County DSL providers. Fidium offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Alamosa County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Alamosa County DSL by Area
This information is most helpful to those looking for homes or considering moving to Alamosa County or any of the areas nearby.
How does DSL internet in Alamosa County compare to the rest of Colorado?
DSL internet speeds in Alamosa County are much faster versus the average speeds in Colorado: 0.00 Mbps in Colorado versus 25 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Colorado is 0.00% versus 85.85% in Alamosa County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Alamosa County 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 counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Montezuma County, CO: more DSL coverage, faster speeds
- Baca County, CO: less DSL coverage, faster speeds
- San Juan County, UT: less DSL coverage, faster speeds
- Stanton County, KS: less DSL coverage, faster speeds
- Grant County, KS: less DSL coverage, faster speeds
- Haskell County, KS: less DSL coverage, slower speeds
- Kiowa County, KS: less DSL coverage, slower speeds
- Sumner County, KS: less DSL coverage, faster speeds
- Elk County, KS: less DSL coverage, faster speeds
- Wilson County, KS: less DSL coverage, slower speeds
Counties with Similar Populations
- Grant County, OR: less DSL coverage, faster speeds
- Clinch County, GA: more DSL coverage, faster speeds
- Baraga County, MI: more DSL coverage, slower speeds
- Swift County, MN: less DSL coverage, faster speeds
- Beaverhead County, MT: less DSL coverage, slower speeds
- Cassia County, ID: less DSL coverage, faster speeds
- Piscataquis County, ME: less DSL coverage, faster speeds
- Taylor County, WI: less DSL coverage, faster speeds
- Barnwell County, SC: less DSL coverage, faster speeds
- Pershing County, NV: less DSL coverage, slower speeds