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
GTT Communications GTT Communications GTT Communications, Inc. (GTT), formerly Global Telecom and Technology, is a multinational telecommunications and internet provider company with headquarters in McLean, Virginia. GTT operates a Tier 1 IP network, and provides IP transit, MPLS transport services, managed services, voice and unified communications to enterprise, government, and carrier customers in over 100 countries. In 1998, telecom services integrator and network solutions provider Global Internetworking Inc. was founded in McLean, Virginia. That same year, European Telecom and Technology was founded in London. In April 2005, Mercator Partners Acquisition Corp., a special purpose acquisition company created by Reston-based investment bank Mercator