In 12521 there is 1 residential DSL provider covering 28.61% of the zip. The average home can get speeds up to 10 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 12521, NY.
To see availability maps for all providers including fiber, cable, DSL, and more in 12521, NY please click below.
DSL Internet Service Provider in 12521
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 12521 are not shown.
12521 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 12521 is DSL internet available?
DSL Internet Availability Key
DSL is available in 28.61% of 12521. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Fidium. Call one of the companies with service in 12521 above to see who has service at your home.
How fast is DSL internet in 12521?
The map below shows maximum DSL internet speeds by area in 12521.
DSL Internet Speed Key
The average 12521 home can get up to 10 Mbps on their DSL internet plan. The fastest DSL download speed in the zip is 10 Mbps, which 28.61% of residents can get.
Is DSL the fastest internet I can get in 12521?
The fastest internet for you may vary based on where in 12521 you live. In general, fiber competes most often with DSL in the zip.
- Fiber is the fastest internet type for 98.06% of 12521 homes.
- Cable is fastest for less than 1% of the zip.
- 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 12521 homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in 12521, along with details on where in 12521 and at what speeds.
Fidium Fiber DSL in 12521, NY
Fidium DSL coverage
About 28.61%, or 473 people, have Fidium DSL internet available to them in the zip. The company covers the east, north, northeast, central, and southeast 12521 area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 12521.
Fidium Fiber DSL download speeds
Fidium is the slowest when comparing download speeds to all other internet providers in 12521. Versus other DSL providers in the area, Fidium DSL is the fastest. There are no different maximum speeds throughout 12521. The fastest plan anyone in 12521 can order from Fidium goes up to 10 Mbps, and all 12521 customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Fidium Fiber DSL upload speeds
In 12521 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 fastest compared to other 12521 DSL providers. Fidium offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 12521 is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
12521 DSL by Area
This information is most helpful to those looking for homes or considering moving to 12521 or any of the areas nearby.
How does DSL internet in 12521 compare to the rest of New York?
DSL internet speeds in 12521 are much faster versus the average speeds in New York: 0.00 Mbps in New York versus 10 Mbps in the zip. The state has similar DSL availability compared to the zip. Average DSL coverage in New York is 0.00% versus 28.61% in 12521.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around 12521 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 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
- 12529, NY: more DSL coverage, faster speeds
- 12516, NY: more DSL coverage, faster speeds
- 12502, NY: more DSL coverage, faster speeds
- 12517, NY: more DSL coverage, faster speeds
- 12534, NY: less DSL coverage, similar speeds
- 12523, NY: more DSL coverage, faster speeds
- 12503, NY: more DSL coverage, similar speeds
- 12015, NY: less DSL coverage, similar speeds
- 12526, NY: less DSL coverage, similar speeds
- 12414, NY: less DSL coverage, similar speeds
Zip Codes with Similar Populations
- 99173, WA: more DSL coverage, faster speeds
- 04941, ME: more DSL coverage, faster speeds
- 97107, OR: more DSL coverage, faster speeds
- 93562, CA: more DSL coverage, faster speeds
- 12137, NY: less DSL coverage, faster speeds
- 45672, OH: more DSL coverage, faster speeds
- 57068, SD: less DSL coverage, faster speeds
- 49747, MI: more DSL coverage, faster speeds
- 48733, MI: more DSL coverage, faster speeds
- 47163, IN: more DSL coverage, similar speeds