Customers

Our brands

Our best-known own brand is our core brand O2. With it, we inspire, support, and empower our customers to shape their digital lives freely and confidently. O2's products and services are available across all channels for consumers and business customers. In addition to our core brand, our secondary and partner brands offer products for individual needs.
Our Blau brand, for example, is characterized by a particularly simple, clear product portfolio with an excellent price/performance ratio. With brands such as AY YILDIZ, we also appeal to ethnic target groups. Through our entire brand portfolio and our strong partners, we as Telefonica Germany reach an enormously large number of interested parties and tap into new customer groups.

Consumers

Business customers

News

Credits: AdobeStock/Jacob Lund
15.06.2026
Credits: AdobeStock / Jacob Lund
15.06.2026
New mobile communications partnership EWE to use Telefónica Deutschland´s network
Credits: DEICHMANN SE / Rüdiger-Fessel
10.06.2026
Credits: DEICHMANN SE / Rüdiger Fessel
10.06.2026
Network infrastructure in Retail Telefónica Deutschland connects thousands of DEICHMANN Stores across Europe
18.05.2026
18.05.2026
“More Than Just Mobile” Telefónica Deutschland is developing the O2 brand into a combined service provider
O2 Telefónica launches Hiya's Branded Call solution Verified calls protect millions of customers from spam
29.10.2025
29.10.2025
ChatGPT Plus for new customers O2 Telefónica brings artificial intelligence to everyday mobile communications
09.10.2025
New customers and successes The enterprise segment of the Telecommunications Company O2 Telefónica is growing