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Cell Coverage in Sumner, Iowa
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Not enough data for Sumner
We need at least 25 speed tests in Sumner to generate reliable performance metrics.
Network Performance
Based on crowdsourced speed tests and signal measurements in Sumner, Iowa, 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
4.1Mbps
Upload
5.0Mbps
Latency
60ms
Reliability
5.9/ 10
Top Performers
Best Download: Verizon
4.1 Mbps
Best Upload: Verizon
5.0 Mbps
Best Latency: Verizon
60 ms
Best Reliability: Verizon
4.3 / 10
Best Coverage: T-Mobile
100.0%
Coverage Snapshot
5G100.0%
4G LTE100.0%
Not enough tests
Network Performance aggregates all measured carriers in Sumner 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 less than 10 tests. Current medians are 4.1 Mbps download, 5.0 Mbps upload, and 60 ms latency.
Cell Phone Plans for Sumner
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 Sumner: FAQ
What is the best cell phone carrier in Sumner?
We don't yet have enough speed tests in Sumner to rank carriers. Once we reach 25 tests, we'll publish local rankings.
Why might this page show limited data for Sumner?
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 Sumner. 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 Sumner?
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 Sumner?
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