In 81505 there are 5 residential Fiber providers covering 78.14% of the zip. The average home can get speeds up to 1,331 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 81505, CO.
To see availability maps for all providers including fiber, cable, DSL, and more in 81505, CO please click below.
Fiber Internet Service Providers in 81505
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 81505 are not shown.
81505 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 81505 is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 78.14% of 81505. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Quantum Fiber. Call one of the companies with service in 81505 above to see who has service at your home.
How fast is fiber internet in 81505?
The map below shows maximum fiber internet speeds by area in 81505.

Fiber Internet Speed Key
The average 81505 home can get up to 1,331 Mbps on their fiber internet plan. The fastest fiber download speed in the zip is 5,000 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, 64.35% 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 81505.
Fiber internet speeds tend to be faster in the southwest parts of 81505, and slower in the northwest areas of the zip.
Is fiber the fastest internet I can get in 81505?
The fastest internet for you may vary based on where in 81505 you live. In general, cable competes most often with fiber in the zip.
- Fiber is the fastest internet type for 78.14% of 81505 homes.
- Cable is fastest for 21.72% 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 81505 homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in 81505, along with details on where in 81505 and at what speeds.
Clearnetworx Fiber in 81505, CO

Clearnetworx fiber coverage
About 39.19%, or 4,685 people, have Clearnetworx fiber internet available to them in the zip. The company covers the central, southeast, south, and east 81505 area. Clearnetworx is a large internet service provider internet service providers in the US, with internet service available in some of 81505.
Clearnetworx fiber download speeds
Clearnetworx is above average when comparing download speeds to all other internet providers in 81505. Versus other fiber providers in the area, Clearnetworx fiber is below average. There are no different maximum speeds throughout 81505. The fastest plan anyone in 81505 can order from Clearnetworx goes up to 1,000 Mbps, and all 81505 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Clearnetworx fiber upload speeds
In 81505 download speeds tend to be equal to than upload speeds for Clearnetworx fiber. Compared to other ISPs, Clearnetworx is above average where upload speeds are concerned, and below average compared to other 81505 fiber providers. Clearnetworx offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 81505 is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Quantum Fiber Fiber in 81505, CO

Quantum Fiber fiber coverage
About 23.57%, or 2,817 people, have Quantum Fiber fiber internet available to them in the zip. The company covers the southeast, south, central, and northwest 81505 area. Quantum Fiber is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 81505.
Quantum Fiber fiber download speeds
Quantum Fiber is above average when comparing download speeds to all other internet providers in 81505. Versus other fiber providers in the area, Quantum Fiber fiber is above average. There are 3 different maximum speeds throughout 81505. The fastest plan anyone in 81505 can order from Quantum Fiber goes up to 3,000 Mbps, the slowest package only goes up to 940 Mbps, and the zip-wide average maximum speed for 81505 customers is up to 2,005 Mbps.
Show all download speeds
- 46.2% up to 3,000.0 Mbps
- 10.6% up to 2,000.0 Mbps
- 43.2% up to 940.0 Mbps
Quantum Fiber fiber upload speeds
In 81505 download speeds tend to be faster than than upload speeds for Quantum Fiber fiber. Compared to other ISPs, Quantum Fiber is above average where upload speeds are concerned, and above average compared to other 81505 fiber providers. Quantum Fiber offers 3 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 81505 is up to 3,000 Mbps. Some customers have slower plan choices, which only go up to 940 Mbps. On average, Quantum Fiber customers can get speeds up to 1,898 Mbps.
Show all upload speeds
- 46.2% up to 3,000.0 Mbps
- 10.6% up to 1,000.0 Mbps
- 43.2% up to 940.0 Mbps
Spectrum Fiber in 81505, CO

Spectrum fiber coverage
About 22.72%, or 2,716 people, have Spectrum fiber internet available to them in the zip. The company covers the northwest, north, northeast, south, and central 81505 area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of 81505.
Spectrum fiber download speeds
Spectrum is above average when comparing download speeds to all other internet providers in 81505. Versus other fiber providers in the area, Spectrum fiber is below average. There are no different maximum speeds throughout 81505. The fastest plan anyone in 81505 can order from Spectrum goes up to 1,000 Mbps, and all 81505 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In 81505 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 below average compared to other 81505 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 81505 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 386 Mbps.
Show all upload speeds
- 75.5% up to 500.0 Mbps
- 24.5% up to 35.0 Mbps
Highline Fiber in 81505, CO

Highline fiber coverage
About 17.54%, or 2,097 people, have Highline fiber internet available to them in the zip. The company covers the southeast 81505 area. Highline is a large internet service provider internet service providers in the US, with internet service available in a small portion of 81505.
Highline fiber download speeds
Highline is above average when comparing download speeds to all other internet providers in 81505. Versus other fiber providers in the area, Highline fiber is below average. There are no different maximum speeds throughout 81505. The fastest plan anyone in 81505 can order from Highline goes up to 1,000 Mbps, and all 81505 customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Highline fiber upload speeds
In 81505 download speeds tend to be faster than than upload speeds for Highline fiber. Compared to other ISPs, Highline is below average where upload speeds are concerned, and the slowest compared to other 81505 fiber providers. Highline offers no different upload speeds across the zip. The fastest upload speed available to anyone from this ISP in 81505 is up to 200 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 200.0 Mbps
Centurylink Fiber in 81505, CO

Centurylink fiber coverage
About 12.00%, or 1,435 people, have Centurylink fiber internet available to them in the zip. The company covers the south, central, northwest, southeast, and east 81505 area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of 81505.
Centurylink fiber download speeds
Centurylink is above average when comparing download speeds to all other internet providers in 81505. Versus other fiber providers in the area, Centurylink fiber is the slowest. There are 5 different maximum speeds throughout 81505. The fastest plan anyone in 81505 can order from Centurylink goes up to 1,000 Mbps, the slowest package only goes up to 10 Mbps, and the zip-wide average maximum speed for 81505 customers is up to 909 Mbps.
Show all download speeds
- 50.4% up to 1,000.0 Mbps
- 42.4% up to 940.0 Mbps
- 1.6% up to 200.0 Mbps
- 2.2% up to 100.0 Mbps
- 3.3% up to 10.0 Mbps
Centurylink fiber upload speeds
In 81505 download speeds tend to be faster than than upload speeds for Centurylink fiber. Compared to other ISPs, Centurylink is above average where upload speeds are concerned, and below average compared to other 81505 fiber providers. Centurylink offers 5 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 81505 is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 701 Mbps.
Show all upload speeds
- 50.4% up to 1,000.0 Mbps
- 14.4% up to 940.0 Mbps
- 29.6% up to 200.0 Mbps
- 2.2% up to 100.0 Mbps
- 3.3% up to 1.0 Mbps
81505 Fiber by Area
This information is most helpful to those looking for homes or considering moving to 81505 or any of the areas nearby.
How does fiber internet in 81505 compare to the rest of Colorado?
Fiber internet speeds in 81505 are much faster versus the average speeds in Colorado: 0.00 Mbps in Colorado versus 1,331 Mbps in the zip. The state has similar fiber availability compared to the zip. Average fiber coverage in Colorado is 0.00% versus 78.14% in 81505.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around 81505 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
- 81506, CO: less fiber coverage, slower speeds
- 81507, CO: less fiber coverage, slower speeds
- 81501, CO: more fiber coverage, faster speeds
- 81504, CO: less fiber coverage, slower speeds
- 81503, CO: less fiber coverage, faster speeds
- 81521, CO: more fiber coverage, slower speeds
- 81520, CO: less fiber coverage, slower speeds
- 81526, CO: less fiber coverage, slower speeds
- 81624, CO: less fiber coverage, slower speeds
- 84540, UT: less fiber coverage, slower speeds
Zip Codes with Similar Populations
- 11766, NY: less fiber coverage, faster speeds
- 50327, IA: more fiber coverage, faster speeds
- 64601, MO: more fiber coverage, slower speeds
- 64128, MO: more fiber coverage, faster speeds
- 63645, MO: less fiber coverage, faster speeds
- 63390, MO: more fiber coverage, faster speeds
- 62450, IL: more fiber coverage, faster speeds
- 60950, IL: less fiber coverage, faster speeds
- 60548, IL: less fiber coverage, faster speeds
- 57107, SD: less fiber coverage, faster speeds


