O2 (Ireland) fixed line and mobile services are branded as movistar. In January 2009, it was revealed that Ireland was nearly the most profitable market in the world for multinational mobile operators like O2. On 23 March 2009 Vodafone and O2's parent company Telefónica announced a deal to share their existing networks in Ireland and rollout future infrastructure jointly. On 6 April 2011 it was announced that Telefónica O2 Ireland and Eircom had agreed a new network sharing partnership. On 24 June 2013, it was announced that Hutchison Whampoa would acquire Telefónica's Irish mobile operations for €780 million, to be merged into
AT&T Corporation The following is a list of the 16 CEOs of AT&T Corporation, from its incorporation in 1885 until its purchase by SBC Communications in 2005. AT&T Corporation AT&T Corp., originally the American Telephone and Telegraph Company, is the subsidiary of AT&T that provides voice, video, data, and Internet telecommunications and professional services to businesses, consumers, and government agencies. During its long history, AT&T was at times the world's largest telephone company, the world's largest cable television operator, and a regulated monopoly. At its peak in the 1950s and 1960s, it employed one million people and its revenue was roughly $3