O2 (UK) they can do it too" in reference to Vodafone and EE, O2's biggest competitors and the UK's top three mobile-telecoms companies. 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
Entropic Communications Entropic Communications Entropic Communications is a provider of semiconductor solutions for the connected home. Founded in 2001, the company is headquartered in San Diego, California, USA, and maintains offices worldwide. The fabless semiconductor company is recognized for inventing the MoCA® (Multimedia over Coax Alliance) home networking technology, creating Direct Broadcast Satellite (DBS) Outdoor Unit (ODU) single-wire technology, and developing the industry’s first ARM® processor and OpenGL graphics Set-top box (STB), System-on-a-Chip (SoC). Entropic completed its initial public offering on December 7, 2007, listing on the NASDAQ exchange under the ticker symbol ENTR. Entropic was acquired by MaxLinear for a total