In 37421 there are 3 residential Fiber providers covering 99.98% of the zip. The average home can get speeds up to 25,000 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 37421, TN.
To see availability maps for all providers including fiber, cable, DSL, and more in 37421, TN please click below.
Fiber Internet Service Providers in 37421
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 37421 are not shown.
37421 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 37421 is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 99.98% of 37421. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is EPB Power. Call one of the companies with service in 37421 above to see who has service at your home.
How fast is fiber internet in 37421?
The map below shows maximum fiber internet speeds by area in 37421.
Fiber Internet Speed Key
The average 37421 home can get up to 25,000 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 25,000 Mbps, which 99.98% of residents can get.
Is fiber the fastest internet I can get in 37421?
The fastest internet for you may vary based on where in 37421 you live. In general, satellite competes most often with fiber in the zip.
- Fiber is the fastest internet type for 99.98% of 37421 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 37421 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 37421, along with details on where in 37421 and at what speeds.
EPB Power Fiber in 37421, TN
EPB Power fiber coverage
About 99.98%, or 51,841 people, have EPB Power fiber internet available to them in the zip. The company covers the entire 37421 area. EPB Power is a large internet service provider internet service providers in the US, with internet service available in most of 37421.
EPB Power fiber download speeds
EPB Power is the fastest when comparing download speeds to all other internet providers in 37421. Versus other fiber providers in the area, EPB Power fiber is the fastest. There are no different maximum speeds throughout 37421. The fastest plan anyone in 37421 can order from EPB Power goes up to 25,000 Mbps, and all 37421 customers can get this speed.
Show all download speeds
- 100.0% up to 25,000.0 Mbps
EPB Power fiber upload speeds
In 37421 download speeds tend to be equal to than upload speeds for EPB Power fiber. Compared to other ISPs, EPB Power is the fastest where upload speeds are concerned, and the fastest compared to other 37421 fiber providers. EPB Power offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 37421 is up to 25,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 25,000.0 Mbps
EarthLink Fiber in 37421, TN
EarthLink fiber coverage
About 31.02%, or 16,084 people, have EarthLink fiber internet available to them in the zip. The company covers the south, east, central, southeast, northeast, north, southwest, and west 37421 area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 37421.
EarthLink fiber download speeds
EarthLink is below average when comparing download speeds to all other internet providers in 37421. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are 2 different maximum speeds throughout 37421. The fastest plan anyone in 37421 can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the zip-wide average maximum speed for 37421 customers is up to 2,567 Mbps.
Show all download speeds
- 39.2% up to 5,000.0 Mbps
- 60.8% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In 37421 download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other 37421 fiber providers. EarthLink 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 37421 is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 2,567 Mbps.
Show all upload speeds
- 39.2% up to 5,000.0 Mbps
- 60.8% up to 1,000.0 Mbps
AT&T Fiber in 37421, TN
AT&T fiber coverage
About 31.02%, or 16,084 people, have AT&T fiber internet available to them in the zip. The company covers the south, east, central, southeast, northeast, north, southwest, and west 37421 area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 37421.
AT&T fiber download speeds
AT&T is below average when comparing download speeds to all other internet providers in 37421. Versus other fiber providers in the area, AT&T fiber is one of the slowest. There are 2 different maximum speeds throughout 37421. The fastest plan anyone in 37421 can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the zip-wide average maximum speed for 37421 customers is up to 2,567 Mbps.
Show all download speeds
- 39.2% up to 5,000.0 Mbps
- 60.8% up to 1,000.0 Mbps
AT&T fiber upload speeds
In 37421 download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the slowest compared to other 37421 fiber providers. AT&T 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 37421 is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 2,567 Mbps.
Show all upload speeds
- 39.2% up to 5,000.0 Mbps
- 60.8% up to 1,000.0 Mbps
37421 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 37421 or any of the areas nearby.
How does fiber internet in 37421 compare to the rest of Tennessee?
Fiber internet speeds in 37421 are much faster versus the average speeds in Tennessee: 0.00 Mbps in Tennessee versus 25,000 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Tennessee is 0.00% versus 99.98% in 37421.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 37421 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
- 37411, TN: less fiber coverage, similar speeds
- 37416, TN: less fiber coverage, similar speeds
- 37315, TN: less fiber coverage, similar speeds
- 37412, TN: less fiber coverage, similar speeds
- 37406, TN: more fiber coverage, similar speeds
- 37363, TN: less fiber coverage, slower speeds
- 37302, TN: less fiber coverage, slower speeds
- 37404, TN: less fiber coverage, similar speeds
- 30736, GA: less fiber coverage, slower speeds
- 30742, GA: less fiber coverage, slower speeds
Zip Codes with Similar Populations
- 76119, TX: less fiber coverage, slower speeds
- 91344, CA: less fiber coverage, slower speeds
- 90221, CA: less fiber coverage, slower speeds
- 89074, NV: less fiber coverage, slower speeds
- 87507, NM: less fiber coverage, slower speeds
- 85365, AZ: less fiber coverage, slower speeds
- 85295, AZ: less fiber coverage, slower speeds
- 85207, AZ: less fiber coverage, slower speeds
- 85022, AZ: less fiber coverage, slower speeds
- 84120, UT: less fiber coverage, slower speeds