CoverageMap

Isabela

Cell coverage comparison in Isabela, Puerto Rico

PR

Based on crowdsourced speed tests and signal measurements in Isabela, Puerto Rico, the current snapshot reflects over 200 speed tests and shows medians of 98.7 Mbps download, 10.0 Mbps upload, and 90 ms latency.

Performance by Carrier in Isabela

Explore median download speeds, upload performance, and network latency for each major mobile carrier in Isabela, 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.

Claro
Down5.7 Mbps
Up0.6 Mbps
Reliab.0.0 / 10

Less than 10 tests conducted

View Carrier
Liberty
Down98.0 Mbps
Up1.4 Mbps
Reliab.0.0 / 10

Less than 10 tests conducted

View Carrier
T-Mobile
Down105.2 Mbps
Up10.4 Mbps
Reliab.7.2 / 10

Over 200 tests conducted

View Carrier

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

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

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Network Performance in Isabela

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

98.7Mbps

Upload

10.0Mbps

Latency

90ms

Reliability

6.6/ 10

Top Performers

Best Download: T-Mobile

105.2 Mbps

Best Upload: T-Mobile

10.4 Mbps

Best Latency: Claro

72 ms

Best Reliability: T-Mobile

7.2 / 10

Based on over 200 speed tests

Network Performance aggregates all measured carriers in Isabela 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 200 tests. Current medians are 98.7 Mbps download, 10.0 Mbps upload, and 90 ms latency.

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Isabela

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Cell Coverage in Isabela: FAQ

What is the best cell phone carrier in Isabela?

Based on crowdsourced speed tests in Isabela, 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 Isabela?

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 Isabela. 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 Isabela?

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 Isabela?

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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Check Coverage at Your Exact Location

Use our interactive coverage map to see detailed signal strength data for any address in Isabela.

Open Interactive Map