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Deutsche Telekom's quarter-century relationship with T-Mobile US

Published by Global Banking & Finance Review

Posted on April 22, 2026

3 min read

· Last updated: April 23, 2026

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Deutsche Telekom's quarter-century relationship with T-Mobile US
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April 22 (Reuters) - Deutsche Telekom is exploring a deal to combine with its U.S. unit, T-Mobile US, according to sources, in what would be a record-breaking public merger. The deal would crown a

Deutsche Telekom and T-Mobile US: 25 Years of Strategic Milestones

Key Events in the Deutsche Telekom and T-Mobile US Partnership

April 22 (Reuters) - Deutsche Telekom is exploring a deal to combine with its U.S. unit, T-Mobile US, according to sources, in what would be a record-breaking public merger.

The deal would crown a quarter century of maneuvering that transformed an American upstart into a $218 billion juggernaut and made the U.S. business the crown jewel of its German parent.

Here are milestones in the relationship between Deutsche Telekom and T-Mobile:

Early Foundations and Acquisitions

1999: VoiceStream Wireless Spin-Off

1999 - Western Wireless spins off its VoiceStream Wireless unit into the VoiceStream Wireless Corporation.

2000-2001: Deutsche Telekom Enters the U.S. Market

2000 - Deutsche Telekom agrees to acquire VoiceStream Wireless and U.S. GSM operator Powertel. The deal is valued at approximately $50.7 billion at the time of the announcement.

2001 - Deutsche Telekom completes its acquisitions of VoiceStream and Powertel, forming what it calls the world's first transatlantic wireless communications operator using the GSM standard. VoiceStream becomes part of T-Mobile International, Deutsche Telekom's mobile subsidiary.

2002: T-Mobile Brand Launch in the U.S.

2002 - VoiceStream, rebranded as T-Mobile USA, begins rolling out the T-Mobile brand in major western U.S. cities, including Las Vegas, Los Angeles and San Francisco.

Strategic Setbacks and Growth

2011: Failed AT&T Acquisition

2011 - AT&T announces plans to purchase T-Mobile US for $39 billion, but the deal collapses after the intervention by U.S. antitrust regulators. Deutsche Telekom receives $4 billion in breakup compensation.

2013: Merger with MetroPCS

2013 - T-Mobile USA merges with MetroPCS. The combined company begins trading under the name T-Mobile US and the ticker symbol TMUS on the New York Stock Exchange on May 1.

2020: Sprint Merger

2020 - T-Mobile US completes an all-stock merger with Sprint valued at $26 billion. Deutsche Telekom's stake in T-Mobile US shrinks to 43%, while Sprint's owner, Japan's SoftBank, takes a 24% stake.

Recent Developments and Future Prospects

2021: Divestment and Share Buyback

2021 - Deutsche Telekom sells T-Mobile Netherlands for 5.1 billion euros, or $6 billion in today's exchange rate, and uses some of the proceeds to buy back T-Mobile US shares.

2022: Increasing Stake in T-Mobile US

2022 - Deutsche Telekom acquires 21.2 million T-Mobile US shares from SoftBank for $2.4 billion, increasing its stake to 48.4%.

2023: Achieving Majority Stake

2023 - Deutsche Telekom surpasses a 50% stake in T-Mobile US. During a Deutsche Telekom general meeting, CEO Tim Hoettges says that the company had been pursuing a majority stake since 2021.

2026: Exploring a Landmark Merger

2026 - Deutsche Telekom is exploring a deal to combine with T-Mobile US to create a $400 billion telecoms giant in what would be the largest-ever public merger, two people familiar with the matter say.

Exchange Rate Reference

($1 = 0.8515 euros)

(Reporting by Leo Marchandon in Gdansk, editing by Thomas Seythal)

Key Takeaways

  • DT’s 2001 acquisition of VoiceStream and Powertel laid the foundation for T-Mobile US, rebranded in 2002 and forming the basis of a transatlantic telecom expansion.(en.wikipedia.org)
  • Major consolidation milestones include the failed AT&T bid in 2011 (compensated with $4 billion), the 2013 MetroPCS reverse takeover, and the 2020 Sprint merger, which propelled T‑Mobile US to industry leadership.(en.wikipedia.org)
  • DT steadily increased its ownership: majority control achieved in 2023 (over 50 %), rising to about 53.7 % by early 2026, solidifying T-Mobile US as its crown‑jewel asset.(telekom.com)
  • The proposed merger, via a new holding structure, would create a $400 billion-plus telecom champion and mark the largest-ever public-to-public merger, contingent on political approval.(elpais.com)

References

Frequently Asked Questions

When did Deutsche Telekom acquire VoiceStream Wireless?
Deutsche Telekom agreed to acquire VoiceStream Wireless in 2000 and completed the acquisition in 2001.
How did T-Mobile US become Deutsche Telekom’s key asset?
T-Mobile US grew through multiple mergers and strategic investments, becoming Deutsche Telekom’s crown jewel by 2023 with a majority stake.
What major mergers has T-Mobile US been involved in?
T-Mobile US merged with MetroPCS in 2013 and completed a $26 billion merger with Sprint in 2020.
What is the significance of the potential Deutsche Telekom and T-Mobile US merger?
If completed, the deal could create a $400 billion telecoms giant, marking the largest-ever public merger.
Why did the AT&T purchase of T-Mobile US fail?
The 2011 AT&T deal collapsed after intervention by U.S. antitrust regulators.

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