Segment reporting

The following table gives an overall summary of Deutsche Telekom’s operating segments and the Group Headquarters & Group Services segment for the first quarters of 2021 and 2020.

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

Effective January 1, 2021, Deutsche Telekom reassigned the responsibility for business and profit and loss for Deutsche Telekom IoT GmbH from the Systems Solutions operating segment to the business customer unit in the Germany operating segment. Prior-year comparatives in both segments were adjusted retrospectively. As of January 1, 2021, Deutsche Telekom reassigned the Austrian cell tower business from the Europe operating segment to GD Towers in the Group Development operating segment. Prior-year comparatives in both of the segments affected have not been adjusted retrospectively. As of January 1, 2021, DT IT Russia, DT IT Slovakia, and DT IT Hungary were reassigned from the Germany operating segment to the Group Headquarters & Group Services segment. Prior-year comparatives in both of the segments affected have not been adjusted retrospectively.

For further information, please refer to the section “Accounting policies.”

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 also in the creditor company’s financial statements and measured at fair value through profit or loss.