0001193125-26-267799 Sample Contracts

NINETEENTH SUPPLEMENTAL INDENTURE
Supplemental Indenture • June 11th, 2026 • Qwest Corp • Telephone communications (no radiotelephone) • New York

NINETEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) dated as of June 11, 2026, between QWEST CORPORATION, a Colorado corporation (formerly named US West Communications, Inc.) (the “Issuer”), and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, a national banking association, as trustee under the Indenture referred to below (the “Trustee”).

QWEST CORPORATION, LUMEN TECHNOLOGIES, INC., AS GUARANTOR, AND U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS TRUSTEE FIRST SUPPLEMENTAL INDENTURE DATED AS OF June 11, 2026 TO INDENTURE DATED June 11, 2026 $1,002,320,075 6.500% Notes due 2051...
First Supplemental Indenture • June 11th, 2026 • Qwest Corp • Telephone communications (no radiotelephone) • New York

THIS FIRST SUPPLEMENTAL INDENTURE (this “First Supplemental Indenture”) is entered into as of June 11, 2026 among Qwest Corporation, a Colorado corporation (the “Company”), Lumen Technologies, Inc., a Louisiana corporation, as guarantor (the “Guarantor”), and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”).

Qwest Corporation as Issuer and U.S. Bank Trust Company, National Association, as Trustee INDENTURE Dated as of June 11, 2026
Indenture • June 11th, 2026 • Qwest Corp • Telephone communications (no radiotelephone) • New York

INDENTURE, dated as of June 11, 2026, between Qwest Corporation, a corporation duly organized and existing under the laws of the State of Colorado (herein called the “Company”), and U.S. Bank Trust Company, National Association, a national banking association duly organized and existing under the laws of the United States, as Trustee (herein called the “Trustee”).

EIGHTEENTH SUPPLEMENTAL INDENTURE
Eighteenth Supplemental Indenture • June 11th, 2026 • Qwest Corp • Telephone communications (no radiotelephone) • New York

EIGHTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”) dated as of June 11, 2026, between QWEST CORPORATION, a Colorado corporation (formerly named US West Communications, Inc.) (the “Issuer”), and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, a national banking association, as trustee under the Indenture referred to below (the “Trustee”).