Deutsche Telekom AG: Release of a capital market information

EQS Post-admission Duties announcement: Deutsche Telekom AG / Announcement pursuant to Art. 5 (1) lit. b) and (3) of Regulation (EU) No 596/2014 in conjunction with Art. 2 (2) and (3) of Delegated Regulation (EU)No 2016/1052 Deutsche Telekom AG: Release of a capital market information 10.11.2025 / 17:29 CET/CEST Dissemination of a Post-admission Duties announcement transmitted by EQS News - a service of EQS Group. The issuer is solely responsible for the content of this announcement.

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Announcement pursuant to Art. 5 (1) lit. b) and (3) of Regulation (EU) No 596/2014 in conjunction with Art. 2 (2) and (3) of Delegated Regulation (EU)No 2016/1052 Deutsche Telekom AG, Bonn, Germany ISIN: DE0005557508 Bonn, November 10, 2025 Share buy-back program – 6th Interim Notification In the period from November 3, 2025 until, and including, November 7, 2025 Deutsche Telekom AG has purchased a number of 1,935,342 shares within the framework of its current share buy-back program which has been published by the announcement of October 1, 2025 pursuant to Art. 5 (1) lit. a) Regulation (EU) Nr.596/2014 and Art. 2 (1) Delegated Regulation (EU) Nr. 2016/1052. Date Total number of shares Daily weighted average price (€) Total purchase price without additional acquisition costs (€) 2025-11-07 390,481 26.3750 10,298,936 2025-11-06 386,612 26.6389 10,298,918 2025-11-05 385,771 26.6970 10,298,928 2025-11-04 391,045 26.3369 10,298,913 2025-11-03 381,433 27.0006 10,298,920 Total 1,935,342 26.6075 51,494,616 An overview of the underlying individual trades per day is published on the company website under: https://www.telekom.com/en/investor-relations/investor-relations/announcement-of-share-buy-back-2025-1085520.