EE has announced that it received 5.7 million new 4G customers in the UK during 2014 with the firm achieving 80 percent coverage of the British Isles. The mobile carrier’s 7.7 million 4G customers outstrips the combined efforts of Three’s 1.4 million, O2’s three million and Vodafone’s 1.4 million user base. EE, which BT is currently negotiating to purchase in a £12.5 deal, announced that customer data usage grew six times in 2014.