EE is switching on the UK's first advanced LTE Advanced network this week in the Tech City area of London, with a selection of businesses set to try out the coverage.
Capable of reaching speeds of up to 300Mbps, EE are calling it the fastest 4G network in the world. Standard 4G, although can theoretically reach speed of up to 150Mbps, normally sits around 24Mbps to 30Mbps.
Currently there aren't any devices on the market which can actually process the supersuperfast network, but the chosen trial firms will be given Huawei CAT6 routers next month, which can provide a mobile Wi-Fi connection to up to twenty devices.
The network is being enabled through carrier aggregation, with 20MHz of 1800Mhz spectrum and 20MHz of 2.6Ghz spectrum being used together to deliver the higher speeds.
LTE Advanced isn't expected to be available to the rest of us until at least summer of next year however, with Huawei billed to be rolling out commercially available smartphones and dongles compatible of running on the network in 2014.
EE CEO Olaf Swantee said: "Today we are introducing the next age of 4G mobile technology to the UK.
"Our analysts predict that data usage will grow significantly over the next three years. In fact, our trend-mapping shows that data usage is set to rise by 750 per cent in that period, as consumers and companies conduct more of their business and lives online.
"The network we're switching on today in Tech City uses the spectrum that we acquired in the Ofcom spectrum auction earlier this year, and is the first part of an infrastructure that can meet the future demands of an increasingly data-hungry nation, enabling us to stay one-step ahead of the demand."
EE was the first network to switch on 4G in the country last year, with the firm's superfast network now available in 131 towns and cities in the UK.