O2 (UK) O2 (UK) Telefónica UK Limited (trading as O2 – stylised as O) is a telecommunications services provider in the United Kingdom, owned by the Spanish multinational Telefónica, and is headquartered in Slough. With 25 million subscribers (as of December 2017), O2 is the second-largest mobile network operator in the United Kingdom after EE, with Vodafone in third place. O2 was formed in 1985 as Cellnet, a 60:40 joint venture between BT Group and Securicor. In 1999, BT Group acquired Securicor's share of Cellnet and the company was later rebranded as BT Cellnet. In June 2000, BT Cellnet launched the world's
United Aircraft Corporation 2018, a deal was approved by Russian President Vladimir Putin for the UAC to be acquired from the Federal Agency for State Property Management by Russian state-owned conglomerate Rostec with a turnover cost in excess of one billion rubles (US$15 million). This would result in the entire national aviation assets being put in the hands of Rostec, as Rostec also owns the helicopter monopoly Russian Helicopters and the engine monopoly United Engine Corporation. Rostec had stated it is willing to invest up to 40 billion rubles into the MC-21, taking some burden away from the federal budget. The transfer will