CoverageMap

Cell Coverage in Long Island, Maine

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Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

See Deal
Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

Bring your number to get your first month free

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Not enough data for Long Island

Showing performance data for Cumberland instead. We need at least 25 speed tests in Long Island to generate local metrics.

Performance by Carrier in Cumberland

Compare real-world download speeds, upload performance, and latency for major carriers in Cumberland — based on millions of crowdsourced speed tests to help you find the fastest, most reliable network.

AT&T logo
Down
87.9Mbps
Up
10.4Mbps
Reliab.
8.8/ 10
Cov.
53.4%

Over 3,300 tests conducted

T-Mobile logo
Down
47.7Mbps
Up
9.9Mbps
Reliab.
7.2/ 10
Cov.
27.4%

Over 2,300 tests conducted

Verizon logo
Down
95.5Mbps
Up
16.4Mbps
Reliab.
8.8/ 10
Cov.
100.0%

Over 3,200 tests conducted

These results compare 3 mobile carriers measured in CumberlandAT&T, T-Mobile, Verizon — using median values calculated from crowdsourced speed tests. Each card shows download speed, upload speed, and reliability to give you a complete picture of real-world network performance.

Verizon delivers the fastest median download at 95.5 Mbps, making it the top performer for raw download throughput. Verizon leads in coverage, reaching 100.0% of the area based on FCC data. AT&T ranks highest for reliability with a score of 8.8/10, reflecting consistent connection quality across tests.

Promoted Offers

Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

See Deal
Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

Bring your number to get your first month free

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Network Performance

Based on crowdsourced speed tests and signal measurements in Long Island, Maine using data from Cumberland, get a complete view of mobile performance with area-wide benchmarks and carrier-by-carrier breakdowns. Explore median performance metrics from real-world tests, then compare carriers side-by-side for speed, responsiveness, and availability.

Median Performance

Download

70.8Mbps

Upload

10.6Mbps

Latency

53ms

Reliability

7.4/ 10

Top Performers

Best Download: Verizon

95.5 Mbps

Best Upload: Verizon

16.4 Mbps

Best Latency: Verizon

48 ms

Best Reliability: AT&T

8.8 / 10

Best Coverage: Verizon

100.0%

Coverage Snapshot

5G85.6%
4G LTE100.0%
Based on over 9,500 speed tests

Network Performance aggregates all measured carriers in Cumberland 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 Long Island is limited, so these medians are based on data from Cumberland. Current medians are 70.8 Mbps download, 10.6 Mbps upload, and 53 ms latency.

Promoted Offers

Mint Mobile

$500 off Galaxy S26 series, plus 1 year of unlimited for $15/mo

New customers only

See Deal
Klarna Mobile

Get a Klarna Mobile phone plan with priority 5G on AT&T.

Bring your number to get your first month free

See Deal

Cell Phone Plans for Long Island

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
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
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
Recommended PlanSponsored

Visible Base

Monthly plan

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

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

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Cell Coverage in Long Island: FAQ

What is the best cell phone carrier in Long Island?

Based on crowdsourced speed tests in Cumberland, 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 Long Island?

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

What is the reliability score?

The reliability score summarizes how dependable mobile performance is in Cumberland. 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 Long Island?

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 Long Island?

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