Cell Coverage in Colorado

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Mint Mobile

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New customers only

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Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

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Performance by Carrier in Colorado

Compare real-world download speeds, upload performance, and latency for major carriers in Colorado — based on millions of crowdsourced speed tests to help you find the fastest, most reliable network.

AT&T logo
Down
58.5Mbps
Up
6.4Mbps
Reliab.
4.5/ 10
Cov.
75.9%

Over 95,000 tests conducted

T-Mobile logo
Down
186.3Mbps
Up
13.0Mbps
Reliab.
6.2/ 10
Cov.
59.0%

Over 110,000 tests conducted

Verizon logo
Down
127.2Mbps
Up
9.7Mbps
Reliab.
6.9/ 10
Cov.
62.3%

Over 120,000 tests conducted

These results compare 3 mobile carriers measured in ColoradoAT&T, T-Mobile, Verizon — using median values calculated from crowdsourced speed tests. Each card shows download speed, upload speed, and reliability to give you a complete picture of real-world network performance.

T-Mobile delivers the fastest median download at 186.3 Mbps, making it the top performer for raw download throughput. AT&T leads in coverage, reaching 75.9% of the area based on FCC data. Verizon ranks highest for reliability with a score of 6.9/10, reflecting consistent connection quality across tests.

Promoted Offers

Mint Mobile

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Network Performance

Based on crowdsourced speed tests and signal measurements in Colorado, United States, get a complete view of mobile network performance with both area-wide benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics from real-world tests, then compare carriers side-by-side for speed, responsiveness, and availability.

Median Performance

Download

103.7Mbps

Upload

9.3Mbps

Latency

41ms

Reliability

5.6/ 10

Top Performers

Best Download: T-Mobile

186.3 Mbps

Best Upload: T-Mobile

13.0 Mbps

Best Latency: T-Mobile

34 ms

Best Reliability: Verizon

6.9 / 10

Best Coverage: AT&T

75.9%

Coverage Snapshot

5G51.5%
4G LTE77.2%
Based on over 350,000 speed tests

Network Performance aggregates all measured carriers in Colorado to provide a baseline view of typical speeds and latency in the area. Use these medians as a quick indicator of overall network quality.

These medians are calculated from over 350,000 tests. Current medians are 103.7 Mbps download, 9.3 Mbps upload, and 41 ms latency.

Promoted Offers

Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

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Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

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Cell Phone Plans Available in Colorado

Compare wireless plans from carriers with coverage in this region.

Recommended PlanSponsored

Mint Mobile 5GB Annual

12 month term

T-Mobile
$15/mo
5 GB Data
Hotspot Included
Unlimited min
Unlimited texts
Recommended PlanSponsored

US Mobile 5GB

Monthly plan

AT&T
T-Mobile
Verizon
$15/mo
5 GB Data
Hotspot Included
Unlimited min
Unlimited texts
Taxes & fees included
Recommended PlanSponsored

US Mobile Unlimited Starter Dark Star

Monthly plan

AT&T
$25/mo
Unlimited Data
20 GB Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
Recommended PlanSponsored

Visible Base

Monthly plan

Verizon
$25/mo
Unlimited Data
Unlimited Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
Recommended PlanSponsored

Mint Mobile Unlimited Annual

12 month term

T-Mobile
$30/mo
Unlimited Data
20 GB Hotspot
Unlimited min
Unlimited texts
Limited-time offer

$15/mo first year

Recommended PlanSponsored

Visible+

Monthly plan

Verizon
$35/mo
Unlimited Data
Unlimited Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
Limited-time offer

$30/mo for 5 years with code 5OFF5

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Cell Coverage in Colorado: FAQ

What is the best cell phone carrier in Colorado?

Based on crowdsourced speed tests in Colorado, T-Mobile currently leads in median download speeds. Compare carriers in the performance table above for the latest results.

Why might this page show limited data for Colorado?

We need at least 25 recent speed tests to generate reliable local metrics. If we don't have enough tests yet, the page focuses on maps and nearby locations while we keep collecting data.

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Colorado. It uses a 0.0 to 10.0 scale (higher is better) and is calculated from real-world speed test percentiles with weighted components: download (50%), latency (30%), and upload (20%). It evaluates the lower-end experience using the bottom 10%, 5%, and 1% percentiles when enough samples are available. If local speed testing is limited, a coverage-based fallback is used from signal quality distribution (great/good/poor).

How can I check coverage at my specific address in Colorado?

Use the interactive map to check signal strength at your exact address. Visit the CoverageMap interactive map to explore 4G/5G availability.

How can I contribute coverage data for Colorado?

Download the CoverageMap app and run a few speed tests with location enabled. Your results help improve coverage accuracy and unlock local rankings faster.

Get the app