April 27, 2017 Uses in Definitions Clause

Definitions from Supplemental Indenture

TWENTY-EIGHTH SUPPLEMENTAL INDENTURE (this Twenty-Eighth Supplemental Indenture), dated as of April 28, 2017 (the Series Issue Date), among T-Mobile USA, Inc., a Delaware corporation (the Company), the Guarantors party hereto and Deutsche Bank Trust Company Americas, a New York banking corporation, as Trustee.

Definitions. The Base Indenture, as supplemented by the Eleventh Supplemental Indenture, dated as of May 1, 2013, by and among the Company, the guarantors party thereto and the Trustee, the Sixteenth Supplemental Indenture, dated as of August 11, 2014, by and among the Company, the guarantors party thereto and the Trustee, the Nineteenth Supplemental Indenture, dated as of September 28, 2015, by and among the Company, the guarantors party thereto and the Trustee, and the Twenty-Second Supplemental Indenture, dated as of August 30, 2016, by and among the Company, the guarantors party thereto and the Trustee, and as amended and supplemented in respect of the Notes by this Twenty-Eighth Supplemental Indenture is collectively referred to as the Indenture. All capitalized terms which are used herein and not otherwise defined herein are defined in the Base Indenture and are used herein with the same meanings as in the Base Indenture. If a capitalized term is defined both in the Base Indenture and this Twenty-Eighth Supplemental Indenture, the definition in this Twenty-Eighth Supplemental Indenture shall apply to the Notes established hereby (and any Note Guarantee in respect thereof). 2022 DT Notes means the $1,000,000,000 in principal amount of the Companys 4.000% Senior Notes due 2022-1 issued pursuant to the Base Indenture, as supplemented by that certain Twenty-Sixth Supplemental Indenture dated as of April 27, 2017, among T-Mobile USA, Inc., the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee. 2025 DT Notes means the $1,250,000,000 in principal amount of the Companys 5.125% Senior Notes due 2025-1 to be issued pursuant to the Base Indenture, as supplemented by that certain Twenty-Seventh Supplemental Indenture dated as of April 28, 2017, among T-Mobile USA, Inc., the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee. 2027 Public Indenture means the Base Indenture, as supplemented by that certain Twenty-Fifth Supplemental Indenture dated as of March 16, 2017, among T-Mobile USA, Inc., the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee. $3.5B Notes means the $1,750,000,000 in principal amount of MetroPCS Wireless, Inc.s 6.250% Senior Notes due 2021 and $1,750,000,000 in principal amount of MetroPCS Wireless, Inc.s 6.625% Senior Notes due 2023, each issued as of March 19, 2013, pursuant to the Indenture, between MetroPCS Wireless, Inc., MetroPCS, Inc., MetroPCS Communications, Inc., the guarantors party thereto, and Deutsche Bank Trust Company Americas, as supplemented by the First Supplemental Indenture dated March 19, 2013 or the Second Supplemental Indenture dated March 19, 2013 thereto, as applicable, as amended by the Third Supplemental Indenture dated April 29, 2013, as further supplemented by the Fourth Supplemental Indenture dated May 1, 2013, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee, as further supplemented by the Fifth Supplemental Indenture, dated as of July 15, 2013, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee, as further supplemented by the Sixth Supplemental Indenture, dated as of August 11, 2014, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee, and as further supplemented by the Seventh Supplemental Indenture, dated as of September 28, 2015, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee (as so supplemented and amended, the $3.5B Notes Indenture), (ii) any additional 6.250% Senior Notes due 2021 and 6.625% Senior Notes due 2023 issued under the $3.5B Notes Indenture as part of the same series, and (iii) any Exchange Notes (as defined in the $3.5B Notes Indenture) relating thereto. Change of Control means the occurrence of any of the following:

Definitions from Supplemental Indenture

TWENTY-SEVENTH SUPPLEMENTAL INDENTURE (this Twenty-Seventh Supplemental Indenture), dated as of April 28, 2017 (the Series Issue Date), among T-Mobile USA, Inc., a Delaware corporation (the Company), the Guarantors party hereto and Deutsche Bank Trust Company Americas, a New York banking corporation, as Trustee.

Definitions. The Base Indenture, as supplemented by the Eleventh Supplemental Indenture, dated as of May 1, 2013, by and among the Company, the guarantors party thereto and the Trustee, the Sixteenth Supplemental Indenture, dated as of August 11, 2014, by and among the Company, the guarantors party thereto and the Trustee, the Nineteenth Supplemental Indenture, dated as of September 28, 2015, by and among the Company, the guarantors party thereto and the Trustee, and the Twenty-Second Supplemental Indenture, dated as of August 30, 2016, by and among the Company, the guarantors party thereto and the Trustee, and as amended and supplemented in respect of the Notes by this Twenty-Seventh Supplemental Indenture is collectively referred to as the Indenture. All capitalized terms which are used herein and not otherwise defined herein are defined in the Base Indenture and are used herein with the same meanings as in the Base Indenture. If a capitalized term is defined both in the Base Indenture and this Twenty-Seventh Supplemental Indenture, the definition in this Twenty-Seventh Supplemental Indenture shall apply to the Notes established hereby (and any Note Guarantee in respect thereof). 2022 DT Notes means the $1,000,000,000 in principal amount of the Companys 4.000% Senior Notes due 2022-1 issued pursuant to the Base Indenture, as supplemented by that certain Twenty-Sixth Supplemental Indenture dated as of April 27, 2017, among T-Mobile USA, Inc., the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee. 2025 Public Indenture means the Base Indenture, as supplemented by that certain Twenty-Fourth Supplemental Indenture dated as of March 16, 2017, among T-Mobile USA, Inc., the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee. 2027 DT Notes means the $1,250,000,000 in principal amount of the Companys 5.375% Senior Notes due 2027-1 to be issued pursuant to the Base Indenture, as supplemented by that certain Twenty-Eighth Supplemental Indenture dated as of April 28, 2017, among T-Mobile USA, Inc., the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee. $3.5B Notes means the $1,750,000,000 in principal amount of MetroPCS Wireless, Inc.s 6.250% Senior Notes due 2021 and $1,750,000,000 in principal amount of MetroPCS Wireless, Inc.s 6.625% Senior Notes due 2023, each issued as of March 19, 2013, pursuant to the Indenture, between MetroPCS Wireless, Inc., MetroPCS, Inc., MetroPCS Communications, Inc., the guarantors party thereto, and Deutsche Bank Trust Company Americas, as supplemented by the First Supplemental Indenture dated March 19, 2013 or the Second Supplemental Indenture dated March 19, 2013 thereto, as applicable, as amended by the Third Supplemental Indenture dated April 29, 2013, as further supplemented by the Fourth Supplemental Indenture dated May 1, 2013, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee, as further supplemented by the Fifth Supplemental Indenture, dated as of July 15, 2013, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee, as further supplemented by the Sixth Supplemental Indenture, dated as of August 11, 2014, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee, and as further supplemented by the Seventh Supplemental Indenture, dated as of September 28, 2015, among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee (as so supplemented and amended, the $3.5B Notes Indenture), (ii) any additional 6.250% Senior Notes due 2021 and 6.625% Senior Notes due 2023 issued under the $3.5B Notes Indenture as part of the same series, and (iii) any Exchange Notes (as defined in the $3.5B Notes Indenture) relating thereto. Change of Control means the occurrence of any of the following: