Document

EXHIBIT 4.47

Execution Version

TWENTY-SEVENTH SUPPLEMENTAL INDENTURE

TWENTY-SEVENTH SUPPLEMENTAL INDENTURE (this “Twenty-Seventh Supplemental Indenture”), dated as of December 31, 2025, among T-Mobile USA, Inc. (the “Issuer”), TMPR License LLC (the “New Guarantor”), the existing guarantors signatory hereto (the “Existing Guarantors”) and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”) under the Indenture referred to below.

WHEREAS, the Issuer is party to the Indenture, dated as of April 9, 2020 (the “Base Indenture”) among the Issuer, T-Mobile US, Inc., a Delaware corporation, as a guarantor, and the Trustee, as amended and supplemented with respect to the Issuer’s (a) 3.750% Senior Secured Notes due 2027 by the Second Supplemental Indenture dated as of April 9, 2020, (b) 3.875% Senior Secured Notes due 2030 by the Third Supplemental Indenture dated as of April 9, 2020, (c) 4.375% Senior Secured Notes due 2040 by the Fourth Supplemental Indenture dated as of April 9, 2020, (d) 4.500% Senior Secured Notes due 2050 by the Fifth Supplemental Indenture dated as of April 9, 2020, (e) 1.500% Senior Secured Notes due 2026 by the Seventh Supplemental Indenture dated as of June 24, 2020, (f) 2.050% Senior Secured Notes due 2028 by the Eighth Supplemental Indenture dated as of June 24, 2020 and the Tenth Supplemental Indenture dated as of October 6, 2020, (g) 2.550% Senior Secured Notes due 2031 by the Ninth Supplemental Indenture dated as of June 24, 2020 and the Eleventh Supplemental Indenture dated as of October 6, 2020, (h) 3.000% Senior Secured Notes due 2041 by the Twelfth Supplemental Indenture dated as of October 6, 2020 and the Fifteenth Supplemental Indenture dated as of October 28, 2020, (i) 3.300% Senior Secured Notes due 2051 by the Thirteenth Supplemental Indenture dated as of October 6, 2020 and the Sixteenth Supplemental Indenture dated as of October 28, 2020, (j) 2.250% Senior Secured Notes due 2031 by the Fourteenth Supplemental Indenture dated as of October 28, 2020, (k) 3.600% Senior Secured Notes due 2060 by the Seventeenth Supplemental Indenture dated as of October 28, 2020 and the Twentieth Supplemental Indenture dated as of August 13, 2021, (l) 3.400% Senior Secured Notes due 2052 by the Nineteenth Supplemental Indenture dated as of August 13, 2021 and the Twenty-Third Supplemental Indenture dated as of December 6, 2021, (m) 2.400% Senior Notes due 2029 by the Twenty-First Supplemental Indenture dated as of December 6, 2021 and (n) 2.700% Senior Secured Notes due 2032 by the Twenty-Second Supplemental Indenture, dated as of December 6, 2021, and as amended and supplemented by the Eighteenth Supplemental Indenture dated as of March 30, 2021, the Twenty-Fourth Supplemental Indenture dated as of May 21, 2024, the Twenty-Fifth Supplemental Indenture dated as of March 10, 2025 and the Twenty-Sixth Supplemental Indenture dated as of August 11, 2025 (the Base Indenture as so amended and supplemented, the “Indenture”);

WHEREAS, Section 4.09 of the Indenture provides that under certain circumstances the Issuer is required to cause the New Guarantor to execute and deliver to the Trustee a supplemental indenture pursuant to which the New Guarantor shall become a Guarantor of the applicable Notes on the terms and conditions set forth herein; and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee, the Issuer, the Existing Guarantors and the New Guarantor are authorized to execute and deliver this Twenty-Seventh Supplemental Indenture.

NOW THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Issuer, the New Guarantor, the Existing

Guarantors and the Trustee mutually covenant and agree for the benefit of the Holders of the applicable Notes as follows:

1. Defined Terms. As used in this Twenty-Seventh Supplemental Indenture, capitalized terms used but not defined herein shall have the meaning set forth in the Indenture. The words “herein,” “hereof” and “hereby” and other words of similar import used in this Twenty-Seventh Supplemental Indenture refer to this Twenty-Seventh Supplemental Indenture as a whole and not to any particular section hereof.

2. Agreement to Guarantee. The New Guarantor hereby agrees to unconditionally guarantee, and the Existing Guarantors hereby affirm their joint and several unconditional guarantee of, the Issuer’s obligations under the Notes and the Indenture on the terms and subject to the conditions set forth in the Indenture including but not limited to ARTICLE X thereof.

3. Notices. All notices or other communications to the Issuer and the New Guarantor shall be given as provided in Section 12.02 of the Indenture.

4. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly contemplated hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect.

5. Governing Law. THIS TWENTY-SEVENTH SUPPLEMENTAL INDENTURE WILL BE GOVERNED BY THE LAWS OF THE STATE OF NEW YORK.

6. The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Twenty-Seventh Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the New Guarantor and the Issuer.

7. Counterpart Originals. This Twenty-Seventh Supplemental Indenture may be executed in any number of counterparts and by the parties hereto in separate counterparts, each of which when so executed will be deemed to be an original and all of which taken together will constitute one and the same agreement. The exchange of copies of this Twenty-Seventh Supplemental Indenture and of signature pages by facsimile or electronic transmission shall constitute effective execution and delivery of this Twenty-Seventh Supplemental Indenture as to the parties hereto and may be used in lieu of the original Twenty-Seventh Supplemental Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or electronic transmission shall be deemed to be their original signatures for all purposes. The parties may sign any number of copies of this Twenty-Seventh Supplemental Indenture. Each signed copy will be an original, but all of them together represent the same agreement.

8. Headings, etc. The headings of the Articles and Sections of this Twenty-Seventh Supplemental Indenture have been inserted for convenience of reference only, are not to be considered a part of this Twenty-Seventh Supplemental Indenture and will in no way modify or restrict any of the terms or provisions hereof.

[Signatures on following page]

IN WITNESS WHEREOF, the parties hereto have caused this Twenty-Seventh Supplemental Indenture to be duly executed, all as of the date first above written.

and on behalf of the other Guarantors listed in Annex I

By: /s/ Johannes Thorsteinsson
Name: Johannes Thorsteinsson

Title: As set forth in Annex I below

[Twenty-Seventh Supplemental Indenture]

DEUTSCHE BANK TRUST COMPANY AMERICAS, as Trustee

By: /s/ Carol Ng
Name: Carol Ng
Title: Vice President

By: /s/ Sebastian Hidalgo
Name: Sebastian Hidalgo
Title: Assistant Vice President

[Twenty-Seventh Supplemental Indenture]


Name of Issuer or Guarantor			Signatory Title
APC REALTY AND EQUIPMENT COMPANY, LLC ASSURANCE WIRELESS USA, L.P. ATI SUB, LLC BLIS USA, INC. BREEZE ACQUISITION SUB LLC CLEARWIRE COMMUNICATIONS LLC CLEARWIRE LEGACY LLC CLEARWIRE SPECTRUM HOLDINGS II LLC CLEARWIRE SPECTRUM HOLDINGS III LLC CLEARWIRE SPECTRUM HOLDINGS LLC FIXED WIRELESS HOLDINGS, LLC LAB465, LLC METROPCS CALIFORNIA, LLC METROPCS FLORIDA, LLC METROPCS GEORGIA, LLC METROPCS MASSACHUSETTS, LLC METROPCS MICHIGAN, LLC METROPCS NEVADA, LLC METROPCS NEW YORK, LLC METROPCS PENNSYLVANIA, LLC METROPCS TEXAS, LLC MINT MOBILE, LLC NEXTEL SYSTEMS, LLC NEXTEL WEST CORP. NSAC, LLC PLAY OCTOPUS LLC PUSHSPRING, LLC SPRINT CAPITAL CORPORATION SPRINT COMMUNICATIONS LLC SPRINT LLC SPRINT SOLUTIONS LLC SPRINT SPECTRUM REALTY COMPANY, LLC T-MOBILE CENTRAL LLC T-MOBILE INNOVATIONS LLC T-MOBILE LICENSE LLC T-MOBILE MW LLC T-MOBILE NORTHEAST LLC T-MOBILE PUERTO RICO HOLDINGS LLC T-MOBILE PUERTO RICO LLC T-MOBILE RESOURCES LLC T-MOBILE SOUTH LLC T-MOBILE US, INC. T-MOBILE USA, INC. T-MOBILE WEST LLC TDI ACQUISITION SUB, LLC TMPR LICENSE LLC TMUS INTERNATIONAL CORP. USCC SERVICES, LLC			Senior Vice President, Treasury & Treasurer


Name of Issuer or Guarantor			Signatory Title
UVNV, LLC VISTAR MEDIA GLOBAL PARTNERS, LLC VISTAR MEDIA, INC. VMU GP, LLC WBSY LICENSING, LLC			Senior Vice President, Treasury & Treasurer
SPRINTCOM LLC SPRINT SPECTRUM LLC T-MOBILE FINANCIAL LLC T-MOBILE LEASING LLC			Assistant Treasurer