X0206 3 2013-04-30 1 0001283699 T-Mobile US, Inc. TMUS 0001576259 Miller David A C/O T-MOBILE US, INC. 12920 SE 38TH STREET BELLEVUE WA 98006 1 EVP, General Counsel & Sec. millpoa.txt /s/ Sarah E. Mock, Attorney-in-Fact 2013-05-09