O2, Three and Vodafone have agreed to come together to build over 200 new mobile masts to eliminate patchy 4G in rural communities across the UK.

The networks will begin construction on 222 masts this year with a completion date set for 2024. The new sites include 124 in Scotland, 33 in Wales, 11 in Northern Ireland and 54 in England, with the biggest increases in coverage expected to be seen in Scotland, Wales and Northern Ireland.
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https://www.trustedreviews.com/news/o2-three-and-vodafone-have-teamed-up-to-improve-4g-across-the-uk-4120667