In Custer there is 1 residential Fiber provider covering 94.64% of the city. The average home can get speeds up to 1,000 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 Fiber internet providers in Custer, MT.
To see availability maps for all providers including fiber, cable, DSL, and more in Custer, MT please click below.
Fiber Internet Service Provider in Custer
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 Custer are not shown.
Custer 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 Custer is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 94.64% of Custer. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Mid-Rivers COMMUNICATIONS. Call one of the companies with service in Custer above to see who has service at your home.
How fast is fiber internet in Custer?
The map below shows maximum fiber internet speeds by area in Custer.

Fiber Internet Speed Key
The average Custer home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 1,000 Mbps, which 94.64% of residents can get.
Is fiber the fastest internet I can get in Custer?
The fastest internet for you may vary based on where in Custer you live. In general, satellite competes most often with fiber in the city.
- Fiber is the fastest internet type for 94.64% of Custer homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.07%.
- Satellite internet may be the only option for 4.29% of Custer homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Custer, along with details on where in Custer and at what speeds.
Mid-Rivers COMMUNICATIONS Fiber in Custer, MT

Mid-Rivers COMMUNICATIONS fiber coverage
About 94.64%, or 265 people, have Mid-Rivers COMMUNICATIONS fiber internet available to them in the city. The company covers the entire Custer area. Mid-Rivers COMMUNICATIONS is a large internet service provider internet service providers in the US, with internet service available in most of Custer.
Mid-Rivers COMMUNICATIONS fiber download speeds
Mid-Rivers COMMUNICATIONS is the fastest when comparing download speeds to all other internet providers in Custer. Versus other fiber providers in the area, Mid-Rivers COMMUNICATIONS fiber is the fastest. There are no different maximum speeds throughout Custer. The fastest plan anyone in Custer can order from Mid-Rivers COMMUNICATIONS goes up to 1,000 Mbps, and all Custer customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Mid-Rivers COMMUNICATIONS fiber upload speeds
In Custer download speeds tend to be equal to than upload speeds for Mid-Rivers COMMUNICATIONS fiber. Compared to other ISPs, Mid-Rivers COMMUNICATIONS is the fastest where upload speeds are concerned, and the fastest compared to other Custer fiber providers. Mid-Rivers COMMUNICATIONS offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Custer is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Custer Fiber by Area
This information is most helpful to those looking for homes or considering moving to Custer or any of the areas nearby.
How does fiber internet in Custer compare to the rest of Montana?
Fiber internet speeds in Custer are much faster versus the average speeds in Montana: 0.00 Mbps in Montana versus 1,000 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Montana is 0.00% versus 94.64% in Custer.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Custer are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber 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
- Big Horn, MT: less fiber coverage, similar speeds
- Pompeys Pillar, MT: less fiber coverage, similar speeds
- Myers, MT: less fiber coverage, similar speeds
- Hysham, MT: less fiber coverage, similar speeds
- Worden, MT: less fiber coverage, similar speeds
- Hardin, MT: less fiber coverage, faster speeds
- Sumatra, MT: less fiber coverage, similar speeds
- Sanders, MT: less fiber coverage, similar speeds
- Musselshell, MT: more fiber coverage, similar speeds
- Melstone, MT: less fiber coverage, similar speeds
Cities with Similar Populations
- Nemaha, IA: less fiber coverage, similar speeds
- Nevada Mills, IN: more fiber coverage, faster speeds
- New Buena Vista, PA: less fiber coverage, faster speeds
- New Elizabethtown, IN: less fiber coverage, faster speeds
- New Hampshire, OH: less fiber coverage, similar speeds
- New Harmony, MO: less fiber coverage, faster speeds
- New Hill, WV: less fiber coverage, faster speeds
- New Holland, SD: more fiber coverage, similar speeds
- New Miner, WI: less fiber coverage, faster speeds
- New Town, TN: less fiber coverage, faster speeds


