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
State monopoly government monopoly run by the national government, although it may also refer to monopolies run by regional entities called "states" (notably the U.S. states). The most prominent example of a state the monopoly is law and the legitimate use of physical force. In many countries, the postal system is run by the government with competition forbidden by law in some or all services. Also, government monopolies on public utilities, telecommunications and railroads have historically been common, though recent decades have seen a strong privatization trend throughout the industrialized world. In Nordic countries some goods deemed harmful are distributed through a