Telefónica Europe plc was a European broadband and telecommunications company that traded as O2 (typeset as O2). The company originated as a collection of worldwide telecommunications companies, known in the later half of the 1990s as BT Wireless, and a global mobile data business known then as Genie Internet, both subsidiaries of British Telecommunications. As part of a reorganisation of Telefónica in 2014, Telefónica Europe's holdings and operations became direct subsidiaries of its parent. Telefónica Europe's subsidiaries continue to operate under the O2 brand.