CoverageMap

Custer

Cell coverage comparison in Custer, South Dakota

US

Based on crowdsourced speed tests and signal measurements in Custer, South Dakota, the current snapshot reflects 1,300 speed tests and shows medians of 48.2 Mbps download, 7.0 Mbps upload, and 79 ms latency.

Performance by Carrier in Custer

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Custer, 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
Download55.2 Mbps
Upload7.0 Mbps
Latency88 ms
Coverage93.0%

Over 800 tests conducted

T-Mobile logo
Download40.9 Mbps
Upload7.6 Mbps
Latency92 ms
Coverage49.5%

53 tests conducted

Verizon logo
Download38.4 Mbps
Upload7.3 Mbps
Latency73 ms
Coverage77.6%

Over 300 tests conducted

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

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

Network Performance in Custer

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

Median Performance

Download

48.2Mbps

Upload

7.0Mbps

Latency

79ms

Top Performers

Fastest Download: AT&T

55.2 Mbps

Fastest Upload: T-Mobile

7.6 Mbps

Best Latency: Verizon

73 ms

Best Coverage: AT&T

93.0%

Coverage Snapshot

5G64.4%
4G LTE93.0%
Based on 1,300 speed tests

Network Performance aggregates all measured carriers in Custer 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 1,300 tests. Current medians are 48.2 Mbps download, 7.0 Mbps upload, and 79 ms latency.

Cell Phone Plans Available in Custer

Compare wireless plans from carriers with coverage in this area.

Helium Mobile Zero

$0/mo

Monthly plan

T-Mobile
  • 1 GB Data1GB cellular + 2GB Helium Wi-Fi
  • No Hotspot Included
  • 100 Minutes
  • 300 Texts

Helium Mobile Sprout

$5/mo

Monthly plan

T-Mobile
  • 3 GB Datahigh-speed, then data stops
  • No Hotspot Included
  • Unlimited Minutes
  • Unlimited Texts

Red Pocket 500MB 12 Months

$5/mo

12 month term

AT&T
T-Mobile
Verizon
  • 0.5 GB Datahigh-speed, then Unknown
  • Hotspot Included
  • 500 Minutes
  • 500 Texts

Tello 100 Mins

$5/mo

Monthly plan

T-Mobile
  • No Data Included
  • No Hotspot Included
  • 100 Minutes
  • Unlimited Texts

Tello 1GB 100 Mins

$6/mo

Monthly plan

T-Mobile
  • 1 GB Datahigh-speed, then data stops
  • Hotspot Included
  • 100 Minutes
  • Unlimited Texts

Tello 2GB 100 Mins

$7/mo

Monthly plan

T-Mobile
  • 1 GB Datahigh-speed, then data stops
  • Hotspot Included
  • 100 Minutes
  • Unlimited Texts

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Citys in Custer

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Cell Coverage in Custer: FAQ

What is the best cell phone carrier in Custer?

Based on crowdsourced speed tests in Custer, AT&T 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 Custer?

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.

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

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 Custer?

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

View Coverage Map for Custer

Explore detailed coverage data on our interactive map to find the best carrier for your specific location.

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Custer, South Dakota Cell Coverage | CoverageMap