Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement onForm S-3 ofT-Mobile US, Inc. of our report dated February 6, 2020, relating to the financial statements, and the effectiveness of internal control over financial reporting, which appears inT-Mobile US, Inc.’s Annual Report onForm 10-K for the year ended December 31, 2019. We also consent to the reference to us under the heading “Experts”in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Seattle, Washington
April 21, 2020
