Segment reporting

The following table provides an overview of Deutsche Telekom’s operating segments and the Group Headquarters & Group Services segment for the first half of 2018 and the first half of 2017.

Vivento Customer Services GmbH, a provider of call center services, has been assigned to the Germany operating segment since January 1, 2018; previously it was part of the Group Headquarters & Group Services segment. Comparative figures have been adjusted retrospectively.

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

For details on the development of operations in the operating segments and the Group Headquarters & Group Services segment, please refer to the section Development of business in the operating segments in the interim Group management report.