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Cell Coverage in Glen Carbon, Illinois
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Performance by Carrier in Glen Carbon
Compare real-world download speeds, upload performance, and latency for major carriers in Glen Carbon — based on millions of crowdsourced speed tests to help you find the fastest, most reliable network.
DownDownload
99.5Mbps
UpUpload
13.0Mbps
Reliab.Reliability
10.0/ 10
Cov.Coverage
100.0%
Over 200 tests conducted
DownDownload
348.2Mbps
UpUpload
32.2Mbps
Reliab.Reliability
10.0/ 10
Cov.Coverage
100.0%
51 tests conducted
DownDownload
238.2Mbps
UpUpload
8.0Mbps
Reliab.Reliability
10.0/ 10
Cov.Coverage
100.0%
Over 100 tests conducted
These results compare 3 mobile carriers measured in Glen Carbon — AT&T, Verizon, T-Mobile — 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 348.2 Mbps, making it the top performer for raw download throughput. AT&T leads in coverage, reaching 100.0% of the area based on FCC data. AT&T ranks highest for reliability with a score of 10.0/10, reflecting consistent connection quality across tests.
Network Performance
Based on crowdsourced speed tests and signal measurements in Glen Carbon, Illinois, get a complete view of mobile performance with 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
154.8Mbps
Upload
13.3Mbps
Latency
56ms
Reliability
10.0/ 10
Top Performers
Best Download: T-Mobile
348.2 Mbps
Best Upload: T-Mobile
32.2 Mbps
Best Latency: Verizon
49 ms
Best Reliability: AT&T
10.0 / 10
Best Coverage: AT&T
100.0%
Coverage Snapshot
5G100.0%
4G LTE100.0%
Based on over 400 speed tests
Network Performance aggregates all measured carriers in Glen Carbon 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 400 tests. Current medians are 154.8 Mbps download, 13.3 Mbps upload, and 56 ms latency.
Cell Phone Plans for Glen Carbon
Compare wireless plans from carriers with coverage in this area.
Sponsored1 LineRecommended
Mint Mobile 6GB Annual
T-Mobile coverage
$15/mo.
- 6 GB data
- Hotspot included
- high-speed, then 128Kbps
- Unlimited minutes & texts
Sponsored1 LineRecommended
US Mobile 5GB
AT&T & T-Mobile & Verizon coverage
$15/mo. tax included
- 5 GB data
- Hotspot included
- high-speed, then data stops
- Unlimited minutes & texts
Sponsored1 LineRecommended
US Mobile Unlimited Starter Dark Star
AT&T coverage
$25/mo. tax included
- Unlimited data
- 20 GB hotspot
- high-speed
- Unlimited minutes & texts
Sponsored1 LineRecommended
Visible Base
Verizon coverage
$25/mo. tax included
- Unlimited data
- Unlimited hotspot
- high-speed
- Unlimited minutes & texts
Sponsored1 LineRecommended
Mint Mobile Unlimited Annual
T-Mobile coverage
$30/mo.
$15/mo first year
- Unlimited data
- 20 GB hotspot
- high-speed
- Unlimited minutes & texts
Sponsored1 LineRecommended
Visible+
Verizon coverage
$35/mo. tax included
$30/mo for 5 years with code 5OFF5
- Unlimited data
- Unlimited hotspot
- high-speed
- Unlimited minutes & texts
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Cell Coverage in Glen Carbon: FAQ
What is the best cell phone carrier in Glen Carbon?
Based on crowdsourced speed tests in Glen Carbon, 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 Glen Carbon?
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 Glen Carbon. 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 Glen Carbon?
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 Glen Carbon?
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