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CoverageMap.com Site Expands to Include UK Mobile Networks and Data Speeds

Tuesday, Mar 17th, 2026 (6:54 am) - Score 120
CoverageMap.com Screenshot of the UK

The CoverageMap.com website and supporting Apps, which previously only gave a crowdsourced overview of mobile network (cell) coverage and mobile broadband (4G, 5G) speeds across the USA, has now been expanded internationally to include data from users in Canada, the United Kingdom, and Puerto Rico.

The service, which is similar to other platforms like OpenSignal, enables users to search for any city, region, or cellular provider across these areas and see performance insights (e.g. download speed, upload speed, latency, 4G [LTE] / 5G availability, reliability etc.) based on real-world speed tests.

At present the data for the UK is still limited and initial performance reports are based on over 94,000 speedtests, which is relatively small compared with similar studies from existing platforms, but this is expected to grow over time. The first performance results for the major mobile operators can be seen below, which is topped by EE (BT), while O2 puts in the poorest showing.

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Performance of UK Mobile Operators (Data)

1. EE Results:
Download 78.3 Mbps
Upload 13.5 Mbps
Reliability 6.8 / 10

2. Three UK Results:
Download 56.5 Mbps
Upload 8.1 Mbps
Reliability 5.2 / 10

3. Vodafone Results:
Download 35.8 Mbps
Upload 8.1 Mbps
Reliability 5.2 / 10

4. O2 Results:
Download 31.1 Mbps
Upload 5.9 Mbps
Reliability 4.3 / 10

We’ve always believed that consumers deserve honest, data-driven answers about which carrier actually performs well where they live, work, and travel. Taking that mission international has been a long time coming. Whether you’re in London, Toronto, or San Juan, you deserve the same transparent look at real-world network performance,” said Stetson Doggett, Co-Founder of the service.

Credits to one of our members – insertfloppydiskhere – for spotting the development.

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Mark-Jackson
By Mark Jackson
Mark is a professional technology writer, IT consultant and computer engineer from Dorset (England), he also founded ISPreview in 1999 and enjoys analysing the latest telecoms and broadband developments. Find me on X (Twitter), Mastodon, Facebook, BlueSky, Threads.net and .
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Comments
1 Response

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  1. Avatar photo Michael V says:

    Another one to add to the list! I tried this last year, it was limited on data for us so I axed it. I use LTE Discovery [your own personal 4G & 5G coverage] and also Cellmapper to show coverage and 4G sites. [5G sites for Stand Alone 5G.]

    CoverageMap.com has some good design and potential though. I’d like to see this one develop.

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