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
O2 Czech Republic different lines of business: the retail operator O2 and the wholesale infrastructure provider CETIN. The separation includes commercial and managerial leadership and management of both companies, including security, IT and control systems. The company was initially known as SPT Telecom ("Státní telekomunikační podnik", state-owned telecommunications company), and used to have a monopoly for providing fixed-line services. It was reorganized and renamed Český Telecom (Czech Telecom), after the Velvet Divorce saw Czechoslovakia separate into the Czech Republic and Slovakia in 1993. Its mobile subsidiary, Eurotel, was founded in 1990 as a joint venture between SPT (51%) and the American joint-venture Atlantic