Company

The portfolio of O₂ Telefónica, with its core brand O₂ and various secondary and partner brands, includes not only traditional telephony and Internet connections but also innovative digital services in the areas of the Internet of Things, security, entertainment, and data analysis. In mobile communications, O₂ Telefónica serves over 35 million mobile connections (as of December 31, 2025). The company is the leading mobile communications provider in the consumer market and in the market for innovative partner offerings, as well as a rapidly growing provider in the solutions business for corporate customers. The company's powerful and award-winning mobile network reaches more than 99 percent of the population. In the fixed-line network, O₂ Telefónica offers its customers leading technological diversity and geographical availability in Germany. The company is majority-owned by the Spanish telecommunications group Telefónica S.A., based in Madrid, one of the world's largest telecommunications groups. One in four euros generated by the group comes from Germany.