T-Mobile US, Inc.

Mr. Srinivasan Gopalan

CEO, President & Director

Dr. John C. B. Saw Ph.D.

President of Technology & CTO

Mr. Daniel J. Drobac

VP & Chief Accounting Officer

Mr. Jeff Simon

Executive VP & Chief Information Officer

Ms. Quan Yao C.F.A.

Senior Vice President of Investor Relations

Mr. Michael J. Katz

Strategic Advisor

Mr. Jonathan A. Freier

Chief Operating Officer

Mr. Peter Osvaldik

Executive VP & CFO

Mr. Mark W. Nelson Esq., J.D.

Chief Legal Officer & General Counsel

Mr. André Almeida

Chief Broadband, Enterprise & Emerging Business Officer