Company

As one of the world’s leading telecommunications companies, Telefónica wants to be the best gateway to digital technologies for citizens, businesses and institutions. With approx. 300 million connections and an annual turnover of 35 billion euros, the Telefónica Group focuses its activities on Spain, Brazil, Germany and the United Kingdom. Telefónica Deutschland accounts for around a quarter of the Telefónica Group’s turnover. As a full-service telecommunications provider, it is the leading mobile network operator for citizens and a key player in the market for innovative partner offerings, as well as a rapidly growing provider of solutions for enterprises. The company’s core brand is O₂, alongside secondary and partner brands such as Blau and Ay Yildiz. Its range of services includes traditional telephone and internet connections, as well as digital services in the areas of the Internet of Things, security, entertainment and data analysis. In the mobile communications sector, Telefónica Deutschland serves more than 35 million connections (30 June 2026). The provider’s multi-award-winning mobile network covers more than 99 per cent of the population. In 2025, Telefónica Deutschland generated revenue of 8.2 billion euros.