Telefonica

Telefónica, S.A. () is a Spanish broadband and telecommunications provider with operations in Europe, Asia, North America and South America. Operating globally, it is one of the largest mobile network providers in the world. The company started as a public telecommunications company. Its head office is in the Distrito Telefónica in Madrid. As well as the Telefónica brand, it also trades as O2 and Movistar. Telefónica is a supporter of the Hybrid Broadcast Broadband TV (HbbTV) initiative (a consortium of broadcasting and Internet industry companies including SES, OpenTV, and Institut für Rundfunktechnik) that is promoting and establishing an open European standard for hybrid set-top boxes for the reception of broadcast TV and broadband multimedia applications with a single user interface, and has run pilot HbbTV services in Spain.