Cell Coverage in London, England

Loading map...

Performance by Carrier in London

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

EE logo
Down
80.1Mbps
Up
15.2Mbps
Reliab.
9.2/ 10

Over 2,000 tests conducted

View Carrier
O2 logo
Down
64.8Mbps
Up
4.9Mbps
Reliab.
8.8/ 10

Over 2,900 tests conducted

View Carrier
Three logo
Down
74.1Mbps
Up
10.8Mbps
Reliab.
5.7/ 10

Over 2,800 tests conducted

View Carrier
Vodafone logo
Down
61.1Mbps
Up
9.1Mbps
Reliab.
6.8/ 10

Over 2,100 tests conducted

View Carrier

These results compare 4 mobile carriers measured in London — Three, O2, Vodafone, EE — 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.

EE delivers the fastest median download at 80.1 Mbps, making it the top performer for raw download throughput. EE ranks highest for reliability with a score of 9.2/10, reflecting consistent connection quality across tests.

Ad

Network Performance

Based on crowdsourced speed tests and signal measurements in London, England, 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

68.9Mbps

Upload

9.2Mbps

Latency

26ms

Reliability

7.1/ 10

Top Performers

Best Download: EE

80.1 Mbps

Best Upload: EE

15.2 Mbps

Best Latency: Three

21 ms

Best Reliability: EE

9.2 / 10

Based on over 9,900 speed tests

Network Performance aggregates all measured carriers in London 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 9,900 tests. Current medians are 68.9 Mbps download, 9.2 Mbps upload, and 26 ms latency.

Ad

Cell Coverage in London: FAQ

What is the best cell phone carrier in London?

Based on crowdsourced speed tests in London, EE 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 London?

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 London. 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 London?

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 London?

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