O2 (UK) first commercial General Packet Radio Service. BT Cellnet, together with BT Group's mobile telecommunications businesses in Germany, Ireland and the Netherlands, was part of the BT Wireless division. This was spun off from the BT Group in 2002 to form a new holding company, mmO2 plc, which introduced the new "O2" brand for the businesses. In 2005, mmO2 plc was renamed O2 plc. O2 plc was purchased by the Spanish telecommunications company Telefónica in 2006 for £18 billion. Under the terms of the acquisition, Telefónica agreed to retain the "O2" brand and the company's UK headquarters. O2 plc became Telefónica
O2 Global Network O2 Global Network O2 Global Network (O2 International Network for Sustainable Design, stylized as O Global Network) is an international network for people interested in sustainable design. The network is made up of the O2 Global Network foundation, regional hubs, local groups, liaisons and individuals (called O2's). It has currently more than 70 country contacts. O2 ("Oxygen") was founded in 1988 in Milan by Niels Peter Flint, Thierry Kazazian, Jorgi Scheicher, Jeremy Quinn and others. O2 Groups in Denmark, Finland, France, Sweden and the United Kingdom followed. Six years later (5 July 1994), Iris de Graaf and Willem Hanhart founded