In Belvidere there is 1 residential DSL provider covering 13.04% of the city. The average home can get speeds up to 20 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 Belvidere, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Belvidere, IL please click below.
Belvidere, IL Availability Maps
DSL Internet Service Provider in Belvidere
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 Belvidere are not shown.
Belvidere 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 Belvidere is DSL internet available?
DSL Internet Availability Key
DSL is available in 13.04% of Belvidere. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Frontier. Call one of the companies with service in Belvidere above to see who has service at your home.
How fast is DSL internet in Belvidere?
The map below shows maximum DSL internet speeds by area in Belvidere.
DSL Internet Speed Key
The average Belvidere home can get up to 20 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 115 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, 10.79% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Belvidere.
DSL internet speeds tend to be faster in the northwest parts of Belvidere, and slower in the south areas of the city.
Is DSL the fastest internet I can get in Belvidere?
The fastest internet for you may vary based on where in Belvidere you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 72.68% of Belvidere homes.
- Cable is fastest for 25.63% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.50%.
- Satellite internet may be the only option for less than 1% of Belvidere homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Belvidere, along with details on where in Belvidere and at what speeds.
Frontier Communications DSL in Belvidere, IL
Frontier DSL coverage
About 13.04%, or 4,159 people, have Frontier DSL internet available to them in the city. The company covers the south, northwest, central, northeast, east, southwest, and west Belvidere area. Frontier is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Belvidere.
Frontier Communications DSL download speeds
Frontier is the slowest when comparing download speeds to all other internet providers in Belvidere. Versus other DSL providers in the area, Frontier DSL is the fastest. There are 5 different maximum speeds throughout Belvidere. The fastest plan anyone in Belvidere can order from Frontier goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Belvidere customers is up to 20 Mbps.
Show all download speeds
- 3.8% up to 115.0 Mbps
- 2.4% up to 90.0 Mbps
- 1.4% up to 70.0 Mbps
- 9.7% up to 45.0 Mbps
- 82.8% up to 10.0 Mbps
Frontier Communications DSL upload speeds
In Belvidere download speeds tend to be faster than than upload speeds for Frontier DSL. Compared to other ISPs, Frontier is the slowest where upload speeds are concerned, and the fastest compared to other Belvidere DSL providers. Frontier offers 4 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Belvidere is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Frontier customers can get speeds up to 1.5 Mbps.
Show all upload speeds
- 3.8% up to 7.0 Mbps
- 2.4% up to 5.0 Mbps
- 11.1% up to 3.0 Mbps
- 82.8% up to 1.0 Mbps
Belvidere DSL by Area
This information is most helpful to those looking for homes or considering moving to Belvidere or any of the areas nearby.
How does DSL internet in Belvidere compare to the rest of Illinois?
DSL internet speeds in Belvidere are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 20 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Illinois is 0.00% versus 13.04% in Belvidere.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Belvidere 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
- Timberlane, IL: less DSL coverage, faster speeds
- Irene, IL: less DSL coverage, slower speeds
- Garden Prairie, IL: more DSL coverage, slower speeds
- Cherry Valley, IL: more DSL coverage, slower speeds
- Poplar Grove, IL: more DSL coverage, faster speeds
- Caledonia, IL: more DSL coverage, faster speeds
- Loves Park, IL: more DSL coverage, slower speeds
- Rockford, IL: more DSL coverage, slower speeds
- Capron, IL: more DSL coverage, slower speeds
- Kingston, IL: more DSL coverage, faster speeds
Cities with Similar Populations
- Azle, TX: less DSL coverage, faster speeds
- Baldwinsville, NY: less DSL coverage, faster speeds
- Auburn, CA: more DSL coverage, faster speeds
- Aguada, PR: more DSL coverage, slower speeds
- Paradise Hills, NM: more DSL coverage, faster speeds
- Oswego, NY: less DSL coverage, faster speeds
- Ponchatoula, LA: more DSL coverage, faster speeds
- Port Chester, NY: less DSL coverage, faster speeds
- Hiram, GA: more DSL coverage, faster speeds
- Oakdale, CA: more DSL coverage, faster speeds