BT: US$300bn+ Boost Possible via UK Mobile Coverage Upgrade
A new economic report from BT Group, developed in collaboration with analyst firm Assembly Research, forecasts that nationwide deployment of high-capacity, resilient mobile networks could unlock up to £230bn (US$309bn) in economic value for the UK by 2035. The research, titled Driving Growth: The £230bn Opportunity of Improved Mobile Networks, positions mobile infrastructure not merely as a technology asset but as a key lever for national productivity, industrial modernisation and social advancement.
As the UK’s leading provider of fixed and mobile telecommunications services, BT Group supports millions of businesses, consumers and public sector organisations across the country.
It delivers services through three distinct units—Consumer, Business and Openreach, with the latter providing wholesale fixed infrastructure to more than 700 communications providers nationwide.
Economic growth powered by advanced 5G networks
At the core of BT’s report is the potential of 5G standalone (5GSA) networks to catalyse a wave of economic innovation across sectors.
By offering dedicated bandwidth, ultra-low latency and high reliability, 5GSA provides the infrastructure required for emerging technologies such as AI, machine learning, autonomous transport, drones and smart energy systems.
BT estimates that industrial adoption of 5GSA could drive US$118bn in economic growth alone. Improvements in network availability along the UK’s roads and railways present substantial gains.
For example, extending 100% mobile coverage to the UK’s road network could deliver US$60.5bn in benefits, while improved rail coverage may contribute an additional US$16bn through enhanced productivity during travel.
“Our modelling suggests the UK stands to gain as much as US$309bn in economic benefit from more advanced, resilient and widely available mobile coverage,” says Matthew Howett, Founder & CEO of Assembly Research.
“Improved mobile connectivity supports increased productivity on rail journeys, reduced downtime from outages and the adoption of a range of emerging technologies.”
Closing the connectivity gap in rural and urban areas
The BT report highlights the untapped potential of rural and urban communities. Enhanced 4G and 5GSA mobile coverage in rural areas could contribute US$4bn to the UK economy by 2035, while accelerated adoption of drone technology in built-up areas may unlock an additional US$35bn in value.
The media and digital advertising sectors are set to benefit, with improved mobile infrastructure projected to create US$12.7bn in added value.
The report notes that improved reliability in mobile networks would increase the attractiveness of mobile backup solutions, potentially recovering US$10.6bn in productivity by reducing downtime for businesses.
Another key area is energy. BT and Assembly Research suggest that supporting the modernisation of the UK’s energy grid—with mobile networks as an enabler—could yield US$49.7bn in benefits.
A call for policy and regulatory reform
The report urges policymakers to address planning and spectrum allocation barriers that hinder mobile infrastructure development.
Reforming planning regulations and expanding spectrum access are critical enablers for accelerating private sector investment.
“We’re proud to be the biggest investor in the UK’s networks,” says Howard Watson, Chief Security and Networks Officer, BT Group.
“But as the demands on network capacity increase and retail pricing remain comparatively low, greater support is needed to unlock more private sector investment.
"To deliver the networks the nation needs, we need greater collaboration with government and regulators, along with support from local authorities. This report proves that secure, reliable and robust mobile networks bring enormous value to consumers and businesses, fuelling the UK economy.”
Strategic outlook for the telecom sector
For telecommunications providers, the findings present both a commercial opportunity and a policy imperative. The report strengthens the case for increased infrastructure investment and industry-government collaboration to position the UK as a leader in next-generation connectivity.
As the telecoms landscape shifts toward data-centric services and mobile-led experiences, operators that can align technical innovation with economic impact will play a pivotal role in shaping the UK’s digital future.
