Un-carrier customers get big league benefits including a full, free season of MLB.TV Premium, a $109.99 value

And T-Mobile is now the official title sponsor of the T-Mobile Home Run Derby and new T-Mobile Junior Home Run Derby

Bellevue, Washington — March 16, 2016 — T-Mobile [NASDAQ: TMUS] and Major League Baseball (MLB) today announced three more years of sweet fan perks and big league moments with the return of the Un-carrier as an official sponsor of MLB. To celebrate the expanded partnership, the Un-carrier is going big and giving customers a full, free year’s subscription to MLB.TV Premium—America’s No. 1 live streaming sports service. And, this year, T-Mobile will be the title sponsor of both the T-Mobile Home Run Derby during All-Star Week and the T-Mobile Junior Home Run Derby, a new youth competition for boys and girls.

"For the last three years MLB has been with us every step of the way as we have re-written the rules of wireless. This year we're doubling down - and expanding the relationship even further to include the Home Run Derbies and free MLB.TV for customers," said John Legere, president and CEO of T-Mobile. "This isn't just some corporate sponsorship. It's the combined effort of two passionate teams bringing even more amazing perks and game-changing moves to baseball fans over the next three years!"

T-Mobile Simple Choice customers on qualifying plans can sign up during Opening Week, April 3-10, to get a full, free year’s subscription to MLB.TV Premium – a $109.99 value – and watch every out-of-market regular season game live on their T-Mobile devices. With 2,430 games in the regular season, that’s over 7,000 hours of streaming baseball you can Binge On – on America’s fastest 4G LTE network – without burning up any of your high-speed data. For the 2016 season, MLB.TV Premium also comes with a free subscription to At Bat Premium, the No.1 selling sports app in the Apple App Store (a $19.99 value), together with great features, including your choice of home or away broadcasts, multi-game viewing and more.

“T-Mobile is a great partner that brings an exceptional level of commitment and imagination to MLB,” said Bob Bowman, MLB President, Business and Media. “We are thrilled to deepen our productive relationship with T-Mobile, and with the offer to provide free MLB.TV to T-Mobile customers, I’m certain baseball fans share our sentiment.”

T-Mobile will also be title sponsor of the Home Run Derby during All-Star Week and the Junior Home Run Derby, a new nationwide competition for boys and girls across the U.S. Working in partnership with youth organizations like Boys & Girls Clubs of America and other national baseball and softball organizations, the T-Mobile Junior Home Run Derby will include local home run competitions in age divisions 12 & under and 14 & under, across the nation for the first time this season. Regional winners will advance to compete in a final home run competition during 2016 All-Star Week in San Diego. With its involvement in the T-Mobile Junior Home Run Derby, T-Mobile is also a sponsor of PLAY BALL, MLB’s program to encourage widespread participation in both formal and informal baseball activities especially focused on youth.

In the past year alone, the Un-carrier has more than doubled the footprint of its LTE network, rolled out T-Mobile Wideband LTE to over 268 markets and T-Mobile Extended Range LTE – which carries 2x farther from the tower and 4x deeper into buildings − in 300 markets nationwide. With America’s fastest 4G LTE Network, T-Mobile’s got just about every baseball fan covered from Yankee Stadium to Dodger Stadium and everywhere in between. Fans can take in every baseball moment, everywhere they live, work and play, all season long on the network that does data better.

For more about the MLB.TV Premium offer and T-Mobile’s renewed partnership with Major League Baseball, visit www.t-mobile.com/mlb.

Limited time offers; subject to change. Compatible device required. Must be connected to T-Mobile's network to sign up for MLB.TV. At Bat Premium App available at Google Play or Apple App Store. Binge On: Detectable video typically streams at DVD quality (480p or better) with Binge On. You may disable Binge On at any time, but will lose Binge On benefits.



About T-Mobile

As America's Un-carrier, T-Mobile US, Inc. (NASDAQ: TMUS) is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences to more than 63 million customers who are unwilling to compromise on quality and value. Based in Bellevue, Washington, T-Mobile US provides services through its subsidiaries and operates its flagship brands, T-Mobile and MetroPCS. For more information, please visit http://www.t-mobile.com.



About Major League Baseball

Major League Baseball (MLB) is the most historic professional sports league in the United States and consists of 30 member clubs in the U.S. and Canada, representing the highest level of professional baseball. Major League Baseball is the best-attended sport in North America, and since 2004, MLB has enjoyed its best-attended seasons in the history of the game, with each regular season eclipsing the 73 million mark. Now led by Commissioner Robert D. Manfred, Jr., MLB currently features record levels of labor peace, competitive balance and industry revenues, as well as the most comprehensive drug-testing program in American professional sports. MLB remains committed to making an impact in the communities of the U.S., Canada and throughout the world, perpetuating the sport’s larger role in society and permeating every facet of baseball’s business, marketing and community relations endeavors. With the continued success of MLB Advanced Media and MLB Network, MLB continues to find innovative ways for its fans to enjoy America’s National Pastime and a truly global game. For more information on Major League Baseball, visit www.MLB.com.



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T-Mobile Media Contacts

T-Mobile US Media Relations

MediaRelations@T-Mobile.com



T-Mobile Investor Relations

877-281-TMUS OR 212-358-3210

investor.relations@t-mobile.com



Major League Baseball

Matt Bourne, 212.931.7882

matt.bourne@mlb.com

MLB Advanced Media

Matt Gould, 212.485.8959

matthew.gould@mlb.com



