TL;DR
The argument about AI infrastructure in Britain has been almost entirely about data centres, power and water. Senior telecoms executives are pointing at the part nobody costed: the networks that have to carry all this traffic to consumers and businesses. UK mobile performance already trails every G7 and EU comparator, and the upgrade programme is stuck behind planning rules.
The numbers behind the complaint
Analysis by Which?, drawing on Opensignal data, puts UK mobile coverage below all 27 EU members and the rest of the G7. Globally the country sits 57th for network performance, 70th for download speed and 55th on the consistency that video calls and streaming actually need.
Andrea Donà, who runs networks at VodafoneThree, is unusually blunt for an incumbent executive: “I am embarrassed today at the level of quality of our network[s].” His framing of the risk is that today’s shortfall is a preview. Anyone who has lost signal in a crowd at Wembley or Silverstone has seen what saturation feels like; his argument is that mass AI use makes that the normal condition rather than the event-day exception.
Another executive quoted anonymously expects this to follow the trajectory of the full-fibre rollout, from a nascent technical concern to a national competitiveness problem. Once AI is embedded across the next generation of devices, he argues, AI companies and governments will start thinking about networks precisely when networks begin holding them back.
Planning, not money, is the bottleneck
The capital is committed: VodafoneThree has pledged £11bn for mast upgrades, and is actually shrinking its mast estate by 30% rather than expanding it. Roughly 96% of the work involves equipment on sites that already exist — yet over half of those upgrades still need some form of planning consent. Donà’s pitch is that planning reform costs the Treasury nothing, making it an obvious early win for the new prime minister’s growth agenda.
There is a sharper inconsistency here, and it runs straight through today’s other coverage. Mobile networks carry the same critical national infrastructure designation the government has granted data centres — the designation the Green party called outrageous this week. Data centres, however, come with relief on business rates and energy that the mobile operators say they do not receive for the same status.
Looking forward
The practical exposure is for UK firms betting on AI in the field rather than the office: logistics, site inspection, retail, anything where inference happens on a device connected over mobile. Fixed connectivity has largely been fixed. If the mobile estate stays where it is, the constraint on British AI adoption may turn out to be the last mile rather than the data centre.