EE has the greatest 4G coverage of the main UK mobile broadband operators, Ofcom has reported.
A recent study conducted by the media watchdog revealed EE's super-fast mobile services were available to 70 per cent of UK premises in October 2014.
This was up from 68 per cent in June this year, showing the progress made by the firm during the third quarter of the year.
O2 and Vodafone tied for second place with 51 per cent coverage, up from 43 per cent and 37 per cent respectively three months earlier.
The UK's other 4G mobile operator - Three - was excluded from the study due to differences between its own data and Ofcom's field measurements.
However, the regulator noted that data collected and published by OpenSignal shows Three has the lowest 4G coverage of the four national operators at present.
This is perhaps to be expected given that Three was the last of the main four operators to launch next-generation mobile services.
Ofcom Chief Executive Ed Richards said having fast, reliable broadband on the move is "vital" for many consumers and businesses in the UK.
"4G is providing a significantly enhanced mobile broadband experience to customers, which we expect to be available to 98 per cent of the UK population by 2017 at the latest," he stated.