CoverageMap

Merrimack

Cell coverage comparison in Merrimack, New Hampshire

US

Based on crowdsourced speed tests and signal measurements in Merrimack, New Hampshire, the current snapshot reflects over 10,000 speed tests and shows medians of 39.7 Mbps download, 2.7 Mbps upload, and 44 ms latency.

Performance by Carrier in Merrimack

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Merrimack, 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
Down39.5 Mbps
Up2.0 Mbps
Reliab.4.7 / 10
Cov.99.4%

Over 3,700 tests conducted

T-Mobile logo
Down64.2 Mbps
Up4.8 Mbps
Reliab.5.3 / 10
Cov.84.0%

Over 1,300 tests conducted

Verizon logo
Down35.3 Mbps
Up2.9 Mbps
Reliab.5.3 / 10
Cov.91.5%

Over 5,500 tests conducted

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

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

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Limited-time

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Network Performance in Merrimack

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

39.7Mbps

Upload

2.7Mbps

Latency

44ms

Reliability

4.9/ 10

Top Performers

Best Download: T-Mobile

64.2 Mbps

Best Upload: T-Mobile

4.8 Mbps

Best Latency: Verizon

38 ms

Best Reliability: Verizon

5.3 / 10

Best Coverage: AT&T

99.4%

Coverage Snapshot

5G59.3%
4G LTE99.4%
Based on over 10,000 speed tests

Network Performance aggregates all measured carriers in Merrimack 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 over 10,000 tests. Current medians are 39.7 Mbps download, 2.7 Mbps upload, and 44 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 Available in Merrimack

Compare wireless plans from carriers with coverage in this area.

Recommended PlanSponsored

Mint Mobile 5GB Annual

$15/mo

12 month term

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

US Mobile 5GB

$15/mo

Monthly plan

AT&T
T-Mobile
Verizon
  • 5 GB Datahigh-speed, then data stops
  • Hotspot Included
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Recommended PlanSponsored

US Mobile Unlimited Starter Dark Star

$25/mo

Monthly plan

AT&T
  • Unlimited Datahigh-speed
  • 20 GB Hotspot
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Recommended PlanSponsored

Visible Base

$25/mo

Monthly plan

Verizon
  • Unlimited Datahigh-speed
  • Unlimited Hotspot
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
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

Recommended PlanSponsored

Visible+

$35/mo

Monthly plan

Verizon
  • Unlimited Datahigh-speed
  • Unlimited Hotspot
  • Unlimited Minutes
  • Unlimited Texts
  • Taxes & Fees Included
Limited-time offer

$30/mo for 5 years with code 5OFF5

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Citys in Merrimack

Select a city to view coverage data for that location.

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 Coverage in Merrimack: FAQ

What is the best cell phone carrier in Merrimack?

Based on crowdsourced speed tests in Merrimack, 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 Merrimack?

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 Merrimack. 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 Merrimack?

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 Merrimack?

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 Merrimack

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

Open Interactive Map