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EXHIBIT 31.1
Certifications of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
I, G. Michael Sievert, certify that:
1. | I have reviewed this Amendment No. 1 to the Quarterly Report on Form 10-Q of T-Mobile US, Inc.; and |
2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
August 10, 2020
/s/ G. Michael Sievert |
G. Michael Sievert Chief Executive Officer |