CoverageMap

Thornton

Cell coverage comparison in Thornton, New Hampshire

US

Based on crowdsourced speed tests and signal measurements in Thornton, New Hampshire using data from Grafton, the current snapshot reflects over 5,400 speed tests and shows medians of 104.6 Mbps download, 6.7 Mbps upload, and 45 ms latency.

Not enough data for Thornton

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

Performance by Carrier in Grafton

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Grafton, 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
Down110.6 Mbps
Up9.3 Mbps
Reliab.7.0 / 10
Cov.90.9%

Over 1,900 tests conducted

T-Mobile logo
Down131.0 Mbps
Up5.3 Mbps
Reliab.5.7 / 10
Cov.54.0%

Over 800 tests conducted

Verizon logo
Down89.1 Mbps
Up6.3 Mbps
Reliab.6.6 / 10
Cov.93.7%

Over 2,600 tests conducted

Performance by Carrier shows side-by-side results for the primary mobile providers measured in Grafton. 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

Limited-time offer

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

Regular price $25/month for 3 months

Visible

Limited-time

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

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

Network Performance in Grafton

Get a complete view of mobile network performance across Grafton with overall benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics calculated from millions of real-world, crowdsourced speed tests. Start with the Grafton-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

104.6Mbps

Upload

6.7Mbps

Latency

45ms

Reliability

6.5/ 10

Top Performers

Best Download: T-Mobile

131.0 Mbps

Best Upload: AT&T

9.3 Mbps

Best Latency: Verizon

43 ms

Best Reliability: AT&T

7.0 / 10

Best Coverage: Verizon

93.7%

Coverage Snapshot

5G47.7%
4G LTE93.7%
Not enough tests

Network Performance aggregates all measured carriers in Grafton 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 Thornton is limited, so these medians are based on data from Grafton. Current medians are 104.6 Mbps download, 6.7 Mbps upload, and 45 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 Thornton

Compare wireless plans from carriers with coverage in this area.

Recommended PlanSponsored

Mint Mobile Unlimited Annual

$30/mo

12 month term

T-Mobile
  • Unlimited Datahigh-speed
  • 20 GB Hotspot
  • Unlimited Minutes
  • Unlimited Texts
Limited-time offer

$15/mo first year today

Recommended Plan

Red Pocket Premium

$30/mo

Monthly plan

AT&T
  • 50 GB Datahigh-speed, then 64Kbps
  • 10 GB Hotspot
  • Unlimited Minutes
  • Unlimited Texts
Recommended Plan

Mint Mobile 15GB 3 Months

$35/mo

3 month term

T-Mobile
  • 15 GB Datahigh-speed, then 128Kbps
  • Hotspot Included
  • Unlimited Minutes
  • Unlimited Texts

Red Pocket 500MB 12 Months

$5/mo

12 month term

AT&T
  • 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

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Cell Coverage in Thornton: FAQ

What is the best cell phone carrier in Thornton?

Based on crowdsourced speed tests in Grafton, 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 Thornton?

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

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Grafton. 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 Thornton?

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 Thornton?

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 Thornton on our interactive map.

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