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
Live at the O2 Arena + Rarities Live at the O2 Arena + Rarities Live at the O2 Arena + Rarities is the third live album by the American rock band Alter Bridge. Recorded on November 24, 2016, at The O2 Arena in London, England during the tour for 2016's "The Last Hero", the album also features a disc of tracks initially released as bonus tracks on special editions of previous studio albums, as well as two previously unreleased songs that were recorded in 2004. It was released by Napalm Records on September 8, 2017. The live portion of "Live at the O2 Arena + Rarities" was