Every London tube line will have high-speed mobile coverage by the end of 2026
62 of London's 121 subterranean tube stations now have 4G and 5G in halls, corridors and platforms, with additional lines and stations continuing to be connected.
Freshwave, O2 enhance mobile connectivity for Guildford | Computer Weekly
Surrey County Council, Freshwave and O2 deployed 13 4G/5G outdoor small cells in Guildford to boost mobile coverage, reduce network congestion, and preserve the cityscape.