In 83858 there are 4 residential Fiber providers covering 71.35% of the zip. The average home can get speeds up to 6,559 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 83858, ID.
To see availability maps for all providers including fiber, cable, DSL, and more in 83858, ID please click below.
Fiber Internet Service Providers in 83858
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 83858 are not shown.
83858 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 83858 is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 71.35% of 83858. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is TDS. Call one of the companies with service in 83858 above to see who has service at your home.
How fast is fiber internet in 83858?
The map below shows maximum fiber internet speeds by area in 83858.

Fiber Internet Speed Key
The average 83858 home can get up to 6,559 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 8,000 Mbps, which 50.95% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 12.19% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in 83858.
Fiber internet speeds tend to be faster in the south parts of 83858, and slower in the northeast areas of the zip.
Is fiber the fastest internet I can get in 83858?
The fastest internet for you may vary based on where in 83858 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 71.35% of 83858 homes.
- Cable is fastest for 14.96% of the zip.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 13.45%.
- Satellite internet may be the only option for less than 1% of 83858 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 83858, along with details on where in 83858 and at what speeds.
TDS Fiber in 83858, ID

TDS fiber coverage
About 50.95%, or 8,379 people, have TDS fiber internet available to them in the zip. The company covers the central, southeast, south, southwest, west, north, east, and northeast 83858 area. TDS is a large internet service provider internet service providers in the US, with internet service available in a majority of 83858.
TDS fiber download speeds
TDS is the fastest when comparing download speeds to all other internet providers in 83858. Versus other fiber providers in the area, TDS fiber is the fastest. There are no different maximum speeds throughout 83858. The fastest plan anyone in 83858 can order from TDS goes up to 8,000 Mbps, and all 83858 customers can get this speed.
Show all download speeds
- 100.0% up to 8,000.0 Mbps
TDS fiber upload speeds
In 83858 download speeds tend to be equal to than upload speeds for TDS fiber. Compared to other ISPs, TDS is the fastest where upload speeds are concerned, and the fastest compared to other 83858 fiber providers. TDS offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 83858 is up to 8,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 8,000.0 Mbps
Ziply Fiber in 83858, ID

Ziply fiber coverage
About 46.00%, or 7,564 people, have Ziply fiber internet available to them in the zip. The company covers the entire 83858 area. Ziply is one of the largest internet service providers internet service providers in the US, with internet service available in some of 83858.
Ziply fiber download speeds
Ziply is above average when comparing download speeds to all other internet providers in 83858. Versus other fiber providers in the area, Ziply fiber is above average. There are 2 different maximum speeds throughout 83858. The fastest plan anyone in 83858 can order from Ziply goes up to 6,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the zip-wide average maximum speed for 83858 customers is up to 5,749 Mbps.
Show all download speeds
- 95.0% up to 6,000.0 Mbps
- 5.0% up to 1,000.0 Mbps
Ziply fiber upload speeds
In 83858 download speeds tend to be equal to than upload speeds for Ziply fiber. Compared to other ISPs, Ziply is above average where upload speeds are concerned, and above average compared to other 83858 fiber providers. Ziply offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 83858 is up to 6,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, Ziply customers can get speeds up to 5,749 Mbps.
Show all upload speeds
- 95.0% up to 6,000.0 Mbps
- 5.0% up to 1,000.0 Mbps
Intermax Networks Fiber in 83858, ID

Intermax Networks fiber coverage
About 11.04%, or 1,816 people, have Intermax Networks fiber internet available to them in the zip. The company covers the northeast, southwest, northwest, southeast, and east 83858 area. Intermax Networks is a large internet service provider internet service providers in the US, with internet service available in a very small piece of 83858.
Intermax Networks fiber download speeds
Intermax Networks is below average when comparing download speeds to all other internet providers in 83858. Versus other fiber providers in the area, Intermax Networks fiber is one of the slowest. There are no different maximum speeds throughout 83858. The fastest plan anyone in 83858 can order from Intermax Networks goes up to 1,000 Mbps, and all 83858 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Intermax Networks fiber upload speeds
In 83858 download speeds tend to be equal to than upload speeds for Intermax Networks fiber. Compared to other ISPs, Intermax Networks is below average where upload speeds are concerned, and below average compared to other 83858 fiber providers. Intermax Networks offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 83858 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Spectrum Fiber in 83858, ID

Spectrum fiber coverage
About 8.66%, or 1,424 people, have Spectrum fiber internet available to them in the zip. The company covers the southwest, southeast, northeast, and south 83858 area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 83858.
Spectrum fiber download speeds
Spectrum is below average when comparing download speeds to all other internet providers in 83858. Versus other fiber providers in the area, Spectrum fiber is one of the slowest. There are no different maximum speeds throughout 83858. The fastest plan anyone in 83858 can order from Spectrum goes up to 1,000 Mbps, and all 83858 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In 83858 download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other 83858 fiber providers. Spectrum offers 2 different upload speeds across the zip, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in 83858 is up to 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 350 Mbps.
Show all upload speeds
- 67.8% up to 500.0 Mbps
- 32.2% up to 35.0 Mbps
83858 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 83858 or any of the areas nearby.
How does fiber internet in 83858 compare to the rest of Idaho?
Fiber internet speeds in 83858 are much faster versus the average speeds in Idaho: 0.00 Mbps in Idaho versus 6,559 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Idaho is 0.00% versus 71.35% in 83858.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 83858 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 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
- 83835, ID: more fiber coverage, faster speeds
- 83854, ID: more fiber coverage, faster speeds
- 83815, ID: more fiber coverage, faster speeds
- 99025, WA: less fiber coverage, slower speeds
- 83869, ID: less fiber coverage, slower speeds
- 83801, ID: less fiber coverage, slower speeds
- 99021, WA: less fiber coverage, slower speeds
- 99217, WA: less fiber coverage, slower speeds
- 99005, WA: less fiber coverage, slower speeds
- 99218, WA: less fiber coverage, faster speeds
Zip Codes with Similar Populations
- 01520, MA: less fiber coverage, slower speeds
- 99517, AK: less fiber coverage, slower speeds
- 99037, WA: less fiber coverage, slower speeds
- 98136, WA: more fiber coverage, slower speeds
- 98101, WA: more fiber coverage, slower speeds
- 98065, WA: less fiber coverage, slower speeds
- 95963, CA: less fiber coverage, slower speeds
- 95334, CA: less fiber coverage, slower speeds
- 19044, PA: more fiber coverage, slower speeds
- 18707, PA: more fiber coverage, faster speeds


