The group's principal activities are the provision and operation of a wide range of telecommunication services on a national and international level. The group operates through the following business lines: telefonica de espana (basic telecommunications in Spain); telefonica servicios moviles (wireless communications businesses); telefonica international (responsible for making and managing investments in the telecommunications industry in America); admira media (media and entertainment); telefonica data (integral data transmission services); terra networks (Internet service provider); atento holding (call-centre business); telefonica publicidad e informacion (directory business).
