CoverageMap

Alcester

Cell coverage comparison in Alcester, South Dakota

US

Based on crowdsourced speed tests and signal measurements in Alcester, South Dakota using data from Union, the current snapshot reflects over 400 speed tests and shows medians of 93.3 Mbps download, 15.9 Mbps upload, and 67 ms latency.

Not enough data for Alcester

Showing performance data for Union instead. We need at least 25 speed tests in Alcester to generate local metrics.

Performance by Carrier in Union

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Union, 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
53.3Mbps
Up
5.1Mbps
Reliab.
10.0/ 10
Cov.
100.0%

36 tests conducted

View CarrierSee Plans
T-Mobile logo
Down
92.2Mbps
Up
17.3Mbps
Reliab.
10.0/ 10
Cov.
100.0%

Over 300 tests conducted

View CarrierSee Plans
Verizon logo
Down
355.8Mbps
Up
9.6Mbps
Reliab.
8.8/ 10
Cov.
99.9%

67 tests conducted

View CarrierSee Plans

Performance by Carrier shows side-by-side results for the primary mobile providers measured in Union. 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 Union with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the Union-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

93.3Mbps

Upload

15.9Mbps

Latency

67ms

Reliability

10.0/ 10

Top Performers

Best Download: Verizon

355.8 Mbps

Best Upload: T-Mobile

17.3 Mbps

Best Latency: Verizon

65 ms

Best Reliability: AT&T

10.0 / 10

Best Coverage: AT&T

100.0%

Coverage Snapshot

5G93.1%
4G LTE100.0%
Based on over 400 speed tests

Network Performance aggregates all measured carriers in Union 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 Alcester is limited, so these medians are based on data from Union. Current medians are 93.3 Mbps download, 15.9 Mbps upload, and 67 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 Alcester

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 Alcester: FAQ

What is the best cell phone carrier in Alcester?

Based on crowdsourced speed tests in Union, Verizon 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 Alcester?

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

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Union. 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 Alcester?

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 Alcester?

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 Alcester on our interactive map.

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Test coverage at your location and contribute to our crowdsourced data.

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