EE has switched on its 4G+ network in central London, giving consumers the chance to access up to 150Mb mobile broadband speeds in the capital.
The LTE-Advanced service uses EE's 2.6GHz high-capacity spectrum and is available in Shoreditch, Old Street, Southbank, Soho, Westminster and Kensington.
By June 2015, EE aims to have full 4G+ coverage across Greater London - providing average download speeds of 90Mb, potentially rising to 150Mb.
The company is also aiming to introduce ultra-fast mobile broadband across cities such as Birmingham, Liverpool and Manchester.
Olaf Swantee, Chief Executive at EE, said the UK is now back to being a world leader in mobile networks.
"Just two years since we were behind every developed market from the US to Japan, we’ve invested in innovation, driven competition and given people in London a mobile network that’s faster than almost any other in the world, and even faster than most fibre broadband available here," he stated.
Mr Swantee added that EE is "delighted" to be able to offer the fastest mobile broadband speeds in the UK.
"We’ll keep investing to make sure that all our customers can get access to the great mobile technology that can make a real difference to the way they live their digital lives," he stated.