EE (formerly Everything Everywhere) is a British mobile network operator and internet service provider and a subsidiary of BT Group. It was established in 2010 as a 50:50 joint venture between Deutsche Telekom and Orange S.A. (formerly France Télécom) through the merger of their respective T-Mobile and Orange businesses in the UK. It is the largest mobile network operator in the UK, with around 28 million customers and the largest operator of 4G services in Europe.