CoverageMap

Castalian Springs

Cell coverage comparison in Castalian Springs, Tennessee

US

Based on crowdsourced speed tests and signal measurements in Castalian Springs, Tennessee using data from Sumner, the current snapshot reflects over 1,500 speed tests and shows medians of 186.7 Mbps download, 16.3 Mbps upload, and 43 ms latency.

Not enough data for Castalian Springs

Showing performance data for Sumner instead. We need at least 25 speed tests in Castalian Springs to generate local metrics.

Performance by Carrier in Sumner

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Sumner, calculated from millions of real-world, crowdsourced speed tests. These results reflect typical everyday performance to help you compare carriers and choose the network that delivers the fastest speeds, most responsive connections, and broadest coverage where you live, work, and travel.

AT&T logo
Down
126.8Mbps
Up
13.4Mbps
Reliab.
8.5/ 10
Cov.
100.0%

Over 600 tests conducted

View CarrierSee Plans
T-Mobile logo
Down
463.2Mbps
Up
17.1Mbps
Reliab.
8.8/ 10
Cov.
96.2%

Over 300 tests conducted

View CarrierSee Plans
Verizon logo
Down
191.2Mbps
Up
18.6Mbps
Reliab.
9.3/ 10
Cov.
100.0%

Over 500 tests conducted

View CarrierSee Plans

Performance by Carrier shows side-by-side results for the primary mobile providers measured in Sumner. Each row reflects download, upload, latency, and reliability for that carrier.

Providers included in this comparison are AT&T, T-Mobile, Verizon. Per-carrier test counts are shown in the table to indicate data accuracy.

Promoted Offers

Mint Mobile

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Regular price $25/month for 3 months

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Network Performance

Get a complete view of mobile performance across Sumner with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the Sumner-wide snapshot to understand overall trends, then dive deeper to compare individual carriers side-by-side and see how each performs in speed, responsiveness, and availability.

Median Performance

Download

186.7Mbps

Upload

16.3Mbps

Latency

43ms

Reliability

8.8/ 10

Top Performers

Best Download: T-Mobile

463.2 Mbps

Best Upload: Verizon

18.6 Mbps

Best Latency: Verizon

38 ms

Best Reliability: Verizon

9.3 / 10

Best Coverage: AT&T

100.0%

Coverage Snapshot

5G87.4%
4G LTE100.0%
Based on 15 speed 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.

Local testing in Castalian Springs is limited, so these medians are based on data from Sumner. Current medians are 186.7 Mbps download, 16.3 Mbps upload, and 43 ms latency.

Promoted Offers

Mint Mobile

Get the 5GB plan for $10/mo for your first 3 months

Regular price $25/month for 3 months

See Deal
Visible

Get Visible+ for $30/mo with code 5OFF5

Get $5 off for up to 5 years. New customers only.

See Deal

Cell Phone Plans for Castalian Springs

Compare wireless plans from carriers with coverage in this area.

Recommended PlanSponsored

Mint Mobile 5GB Annual

12 month term

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

Visible Base

Monthly plan

Verizon
$25/mo
Unlimited Data
Unlimited Hotspot
Unlimited min
Unlimited texts
Taxes & fees included
View Plan
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

View Plan
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

View Plan

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Cell Coverage in Castalian Springs: FAQ

What is the best cell phone carrier in Castalian Springs?

Based on crowdsourced speed tests in Sumner, 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 Castalian Springs?

We need at least 25 recent speed tests to generate reliable local metrics. Until we reach that threshold in Castalian Springs, we show performance data for Sumner when it is available.

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 Castalian Springs?

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 Castalian Springs?

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

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View Interactive Map

Explore detailed coverage data for Castalian Springs on our interactive map.

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