Cell Coverage in Isabela

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Performance by Carrier in Isabela

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

Claro
Down
5.7Mbps
Up
0.6Mbps
Reliab.
0.0/ 10

Less than 10 tests conducted

View Carrier
Liberty
Down
116.5Mbps
Up
2.6Mbps
Reliab.
0.0/ 10

Less than 10 tests conducted

View Carrier
T-Mobile
Down
105.2Mbps
Up
10.4Mbps
Reliab.
7.2/ 10

Over 200 tests conducted

View Carrier

These results compare 3 mobile carriers measured in Isabela — Claro, T-Mobile, Liberty — 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.

Liberty delivers the fastest median download at 116.5 Mbps, making it the top performer for raw download throughput. T-Mobile ranks highest for reliability with a score of 7.2/10, reflecting consistent connection quality across tests.

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Network Performance

Based on crowdsourced speed tests and signal measurements in Isabela, Puerto Rico, get a complete view of mobile network performance with both 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

100.8Mbps

Upload

10.0Mbps

Latency

90ms

Reliability

6.6/ 10

Top Performers

Best Download: Liberty

116.5 Mbps

Best Upload: T-Mobile

10.4 Mbps

Best Latency: Liberty

65 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 100.8 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, Liberty 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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