Segment reporting

The following table provides an overview of Deutsche Telekom’s operating segments and the Group Headquarters & Group Services segment for the first three quarters of 2026 and 2025.

As of January 1, 2026, Deutsche Telekom reassigned the responsibility for business and profit and loss for Comfortcharge GmbH, which is a provider of e-mobility charging infrastructure, from the Group Development operating segment to the Group Headquarters & Group Services segment. This restructuring will bundle Deutsche Telekom’s mobility services. Prior-year comparatives in the segments affected have not been adjusted retrospectively, since the effects are of minor relevance to the Group and the costs for preparing the adjustment would outweigh the benefit.

For further information, please refer to the section “Development of business in the operating segments” in the interim Group management report.

In accordance with the Company’s principles of segment management, when loans with embedded derivatives are granted internally to Group entities, the derivative component is recognized separately also in the creditor company’s financial statements and measured at fair value through profit or loss.