CoverageMap

Sidcup

Cell coverage comparison in Sidcup, England

GB

Based on crowdsourced speed tests and signal measurements in Sidcup, England, the current snapshot reflects over 300 speed tests and shows medians of 44.0 Mbps download, 5.9 Mbps upload, and 29 ms latency.

Performance by Carrier in Sidcup

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

EE logo
Down38.8 Mbps
Up5.5 Mbps
Reliab.9.3 / 10

89 tests conducted

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O2 logo
Down40.9 Mbps
Up3.3 Mbps
Reliab.8.2 / 10

94 tests conducted

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Three logo
Down72.2 Mbps
Up19.8 Mbps
Reliab.10.0 / 10

54 tests conducted

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Vodafone logo
Down48.0 Mbps
Up5.4 Mbps
Reliab.10.0 / 10

81 tests conducted

View Carrier

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

Providers included in this comparison are O2, Three, Vodafone, EE. Per-carrier test counts are shown in the table to indicate data accuracy.

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Network Performance in Sidcup

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

44.0Mbps

Upload

5.9Mbps

Latency

29ms

Reliability

8.8/ 10

Top Performers

Best Download: Three

72.2 Mbps

Best Upload: Three

19.8 Mbps

Best Latency: EE

26 ms

Best Reliability: Three

10.0 / 10

Based on over 300 speed tests

Network Performance aggregates all measured carriers in Sidcup 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 300 tests. Current medians are 44.0 Mbps download, 5.9 Mbps upload, and 29 ms latency.

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Cell Coverage in Sidcup: FAQ

What is the best cell phone carrier in Sidcup?

Based on crowdsourced speed tests in Sidcup, Three 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 Sidcup?

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 Sidcup. 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 Sidcup?

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 Sidcup?

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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Explore detailed coverage data for Sidcup on our interactive map.

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