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Deutsche Telekom

Deutsche Telekom

Deutsche Telekom AG (or DT) is a German telecommunications company headquartered in Bonn and the largest telecommunications provider in Europe.


Deutsche Telekom AG (or DT) is a German telecommunications company headquartered in Bonn and is the largest telecommunications provider in Europe. DT was formed on January 1, 1995, when the state-owned monopoly Deutsche Bundespost was privatized and became a publicly listed stock corporation. Deutsche Telekom currently provides service to more than fifty countries, including the United States, through subsidiary T-Mobile USA. The company generates 70% of its revenue through subsidiaries outside Germany.

Company Structure

The German government currently holds 31.9% of the company stock; the state owns 14.5% directly, with another 17.4% ownership through government bank KfW.

Deutsche Telekom became privatized following the “German Law on the Reorganization of Posts and Telecommunications,” or Postreform II. This followed Postreform I, which separated the Deutsche Bundespost into three divisions: Post, Postbank, and Telekom.

Deutsche Telekom previously held a four-pillar strategy, consisting of four main business units: T-Com (fixed-line network), T-Mobile (mobile communications network), T-Online (internet services), and T-Systems (customer service and solutions). T-Com and T-Online merged into the broadband/fixed network business unit in 2005, with the unit once again changing to T-Home in 2008. A T-Mobile and T-Home merge in April 2010 created Telekom Deutschland GmbH.

Currently, DT holds four operating segments, including Germany, USA, Europe, and Systems Solutions.

The company serves more than 235 million mobile customers and provides over 27 million fixed-network lines and 21 million broadband lines.


Deutsche Telekom runs numerous operations in Central Europe through their own and other telecom companies. DT holds shares in Slovak Telekom, Magyar Telekom, and OTE, telecommunication operators in Slovakia, Hungary, and Greece. These telephone companies and the main entity provide billing voice and mobile, commercial roaming, internet, access, transport, and in-flight connectivity services.

International Subsidiaries

Deutsche Telekom operates subsidiaries in over fifty countries worldwide, with over 70% of their revenue coming from these wholly-or partially-owned companies. Their largest international subsidiaries include T-Mobile in the US and Tele2 in the Netherlands.

Deutsche Telekom International Subsidiaries



T-Systems Argentina S.A.


T-Mobile Austria GmbH

Software Daten Service Gesellschaft m.b.H.

T-Systems Austria GesmbH

Deutsche-Telekom Global Business Solutions GmbH


T-Systems Belgium NV

Deutsche Telekom Global Business Solutions Belgium NV/SA

Bosnia and Herzegovina

H.T. Mostar d.d.


T-Systems do Brasil Ltda.



January 15, 2021
Deutsche Telekom releases its Access 4.0 platform, with their first live fiber-to-the-home (FTTH) line being placed in Stuttgart, Germany.
November 17, 2020
Deutsche Telekom and Extreme Networks enter a strategic partnership to launch the next generation of Telekom's managed net-based LAN service, NBLS 2.0.
April 2006
Deutsche Telekom raises a $2,844,288,000 initial public offering from Blackstone Group.

Funding Rounds


Further Resources


Deutsche Telecom's Access 4.0 FTTH platform goes live in Stuttgart

Mike Robuck


January 15, 2021

Deutsche Telekom upgraded 45,000 sites for 5G in 2020

Juan Pedro Tomás


December 29, 2020

Netzgeschichten Kanal Trailer


July 19, 2019

What's up with... Deutsche Telekom, BT, Huawei

TelecomTV Staff


January 18, 2021


August 20, 2021
Fighting cyber gangsters can be this exciting: Interactive video modules make employees and thus their companies fit to take on hackers and digital fraudsters better. A varied mix of films, graphics, texts and quiz modules teaches everything about the dark side of the World Wide Web. What makes IT gangsters tick? Never with a raised forefinger, always psychologically effective. Companies thus strengthen their teams against phishing, executive fraud, extortion software, theft of confide...
August 6, 2021
Deutsche Telekom and Messe München have expanded their cooperation in the area of mobile and fixed networks. The trade fair platform of the future will be realized for the IAA Mobility, which will be held in the Bavarian capital from September 07 - 12, 2021, thanks to the latest 5G and fiber-optic solutions. Telekom and Messe München - a successful partnership Telekom has already been a strategic network partner of Messe München in the mobile and fixed-network sectors for several years....
July 22, 2021
The full extent of the disaster is gradually becoming apparent. Deutsche Telekom technicians also report unimaginable damage that even the most experienced among them have never experienced before. Deutsche Telekom employees are doing everything they can to alleviate some of the hardship and improve the situation in the disaster areas. To this end, the teams are working day and night, and in the process they are making progress. Piece by piece, literally meter by meter. Not only with techn...
July 12, 2021
Shell Gas & Power Developments BV (Shell) and T-Systems International GmbH (T-Systems), Deutsche Telekom's corporate customers arm, have signed a memorandum of understanding (MOU) to advance digital innovation as both companies accelerate their transitions to net-zero emissions. The MOU builds on an existing technological relationship between Shell and T-Systems. Under the terms of the agreement the two companies will: , , , , , , • Pursue the net-zero goals of both companies, their supply cha...
June 28, 2021
Deutsche Telekom and Samsung are entering into a strategic partnership for sustainability. In this way, the two companies want to bring the topic in the telco industry out of the niche and into the mass market. Green 5G smartphone The core of the collaboration is the development of a green smartphone suitable for the mass market. It will support 5G technology and be designed to be sustainable. This includes easy repair and a removable battery. The smartphone is planned for the end of...


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