T-MOBILE CEO HISTORY: FROM STANTON TO SIEVERT

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LIST OF T-MOBILE CEOS

  • John W. Stanton (1994-2003)
  • Robert Dotson (2003-2010)
  • Philipp Humm (2010-2012)
  • Jim Alling (2012)
  • John Legere (2012-2020)
  • Mike Sievert (2020-Present)

JOHN W. STANTON

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1994-2003

John Stanton launched a wireless revolution. Working from the ground up, this former McCaw Cellular executive saw something others missed. Digital could beat analog, and customer service could win markets.

His VoiceStream Wireless began with a simple promise: “Get more from life.”

While competitors focused on coverage maps, Stanton focused on customer experience. He chose GSM technology when others stuck with older systems, betting on international compatibility and superior call quality.

Stanton built the foundation that would become T-Mobile USA, then sold it to Deutsche Telekom for $35 billion.

ROBERT DOTSON

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2003-2010

From Pepsi to Pink.

Dotson transformed T-Mobile from a telecom company into a lifestyle brand. This PepsiCo veteran understood in wireless that perception is everything.

His secret weapon? Jamie Lee Curtis.

Dotson greenlit the “GET MORE” slogan, which became the company’s philosophy. Dotson made T-Mobile the scrappy underdog that actually delivered on its promises. Under his watch, T-Mobile became America’s fastest-growing wireless carrier.

While others sold minutes and megabytes, Dotson sold dreams. He positioned T-Mobile as the carrier that cared about customers, not contracts.

Seven years of steady growth. You couldn’t ask for a better track record.

PHILIPP HUMM

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2010-2012

Humm arrived during T-Mobile’s darkest hour. The company was bleeding customers, AT&T wanted to buy them out, and morale was at rock bottom.

This German executive had one mission. Survive.

For nearly a year, Humm’s hands were tied by the pending AT&T acquisition. When regulators killed the deal, he had to rebuild from scratch with a $4 billion network investment.

After leaving T-Mobile, Humm did something unprecedented for a telecom CEO. He became an artist.

JIM ALLING

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2012

The Interim leader who kept the lights on.

When Humm suddenly resigned to join a competitor, someone had to steady the ship. Enter Jim Alling, the COO who stepped up when T-Mobile needed stability most.

His tenure was brief but crucial.

Alling oversaw the $4 billion network overhaul. He prepared for LTE. And didn’t let the company implode during a leadership transition.

He maintained momentum during uncertainty and set the stage for what came next: the Un-carrier revolution.

JOHN LEGERE

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2012-2020

The CEO who broke every rule.

John Legere didn’t just change T-Mobile, he reinvented what a wireless CEO could be.

Magenta hair. Leather jackets. Cooking shows on Facebook Live.

This wasn’t your typical corporate executive.

Legere eliminated contracts, simplified pricing, and picked fights with Verizon and AT&T on Twitter.

The stock prices tell the story. $9.73 to $90.80. Customer satisfaction went through the roof during his tenure. Legere transferred T-Mobile from a laughingstock to a leader in the pack.

From near-bankruptcy to industry disruptor in eight years. That’s the Legere legacy.

MIKE SIEVERT

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2020-Present

At age 10, Mike Sievert delivered newspapers to buy his first computer. Today, he runs America’s second-largest wireless network.

That’s the American dream, wireless-style.

He’s currently on a quest to complete the Sprint acquisition. Build America’s first standalone 5G network. Keep the Un-carrier momentum alive without Legere’s theatrical flair.

Today, T-Mobile has 132.8 million subscribers and counting. He was named CNN Business “CEO of the Year” in 2022 and received the Yale “Legend in Leadership Award” in 2024.

While others chase quarterly numbers, Sievert plays the long game. His focus on dominating 5G because T-Mobile is “miles ahead.”

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