Exhibits filed or furnished as part of this report are listed below.
| Incorporated by Reference | |
| 2.1 | Agreement, dated as of February 8, 2023, by and among certain affiliates of Registrant, and Colt Technology Services Group Limited. | Registrant | 10-K | 12/31/22 | |
| 2.2 | Purchase Agreement, dated as of May 21, 2025, by and among Lumen Technologies, Inc., the Sellers named therein, Forged Fiber 37, LLC, and, solely for purposes of Section 11.16 thereof, AT&T DW Holdings, Inc. | Registrant | 8-K | 5/21/25 | |
| 3.1 | Composite Articles of Incorporation of the Registrant, as amended and restated through May 13, 2025. | Registrant | 8-K | 5/15/25 | |
| 3.2 | Amended and Restated Bylaws of Registrant, as of February 18, 2026. | | Filed | |
| 3.3 | Amended and Restated Bylaws of Registrant, as of February 18, 2026, marked to show amendments. | | Filed | |
| 4.1 | Description of Registrant's securities registered under Section 12 of the Securities Exchange Act of 1934, as amended. | | Filed | |
| 4.2 | Form of Registrant's common stock certificate. | Registrant | 8-K | 1/26/21 | |
| 4.3 | Second Amended and Restated Section 382 Rights Agreement by and between Registrant and Computershare Trust Company, N.A., dated as of November 15, 2023. | Registrant | 10-K | 12/31/23 | |
| 4.4 | Instruments relating to Registrant's Senior Secured Credit Facilities. | |
| a. | Superpriority Revolving/Term A Credit Agreement, dated as of March 22, 2024, among Lumen Technologies, Inc., as borrower, the lenders and issuing banks party thereto and Bank of America, N.A., as administrative agent and collateral agent. | Registrant | 8-K | 3/28/24 | |
| i | Limited Waiver and Amendment No. 1 to Superpriority Revolving/Term A Credit Agreement, dated as of December 16, 2025, among Lumen Technologies, Inc., as borrower, the lenders party thereto and Bank of America, N.A. as administrative agent. | | Filed |
| b. | Superpriority Term B Credit Agreement, dated as of March 22, 2024, among Lumen Technologies, Inc., as borrower, the lenders party thereto, Wilmington Trust, National Association, as administrative agent, and Bank of America, N.A., as collateral agent. | Registrant | 8-K | 3/28/24 | |
| Incorporated by Reference | |
| i. | Amendment No. 1, dated as of August 26, 2024, to the Superpriority Term B Credit Agreement dated as of March 22, 2024, among Lumen Technologies, Inc., as borrower, the lenders party thereto, Wilmington Trust, National Association, as administrative agent, and Bank of America, N.A., as collateral agent. | Registrant | 10-Q | 9/30/24 |
| 4.5 | Instruments relating to Registrant’s Predecessor Credit Facilities | |
| a. | Restatement Agreement, dated as of January 31, 2020, by and among Registrant, as Borrower, Bank of America, N.A., as Administrative Agent and Collateral Agent, and the other lenders named therein. | Registrant | 8-K | 2/03/20 | |
| b. | Amended and Restated Credit Agreement, dated as of January 31, 2020, by and among Registrant, as Borrower, Bank of America, N.A. as Administrative Agent and Collateral Agent, and the other lenders, agents, arrangers and bookrunners named therein. | Registrant | 8-K | 2/03/20 | |
| c. | LIBOR Transition Amendment, dated as of March 17, 2023, by and among Registrant, the Guarantors party thereto, and Bank of America, N.A., as administrative agent and collateral agent, amending the parties’ Amended and Restated Credit Agreement dated as of January 31, 2020. | Registrant | 10-Q | 3/31/23 | |
| d. | Amendment Agreement, dated as of February 15, 2024, by and among the Registrant, Bank of America, N.A., as administrative agent and collateral agent, and the lenders party thereto, amending the parties' Amended and Restated Credit Agreement dated as of January 31, 2020. | Registrant | 10-K | 12/31/23 | |
| e. | Amendment Agreement, dated as of March 22, 2024, among Lumen Technologies, Inc., as borrower, the guarantors party thereto, the issuing banks party thereto, the lenders party thereto and Bank of America, N.A., as administrative agent and collateral agent, to the Amended and Restated Credit Agreement, dated as of January 31, 2020, among Lumen Technologies, Inc., as borrower, the issuing banks party thereto, the lenders party thereto and Bank of America, N.A., as administrative agent, collateral agent and swingline lender. | Registrant | 8-K | 3/28/24 | |
| Incorporated by Reference | |
| f | Second Amendment Agreement, dated as of September 29, 2025, among Level 3 Parent, LLC, Level 3 Financing, Inc., as Borrower, the lenders party thereto and Wilmington Trust, National Association, as administrative agent and collateral agent. | Registrant | 8-K | 9/29/25 | |
| 4.6 | Instruments relating to Registrant's senior debt securities. | |
| a. | Indenture, dated as of March 31, 1994, by and between Registrant and Regions Bank (successor-in-interest to First American Bank & Trust of Louisiana), as Trustee. | Registrant | 10-K | 12/31/14 | |
| (i) | Form of 7.2% Senior Notes, Series D, due 2025. | Registrant | 10-K | 12/31/95 |
| (ii) | Form of 6.875% Debentures, Series G, due 2028. | Registrant | 10-K | 12/31/97 |
| (iii) | Fifth Supplemental Indenture, dated as of September 21, 2009, by and between Registrant and Regions Bank, as Trustee, designating and outlining the terms and conditions of Registrant's 7.60% Senior Notes, Series P, due 2039. | Registrant | 8-K | 9/22/09 |
| (iv) | Seventh Supplemental Indenture, dated as of March 12, 2012, by and between Registrant and Regions Bank, as Trustee, designating and outlining the terms and conditions of Registrant's 7.65% Senior Notes, Series U, due 2042. | Registrant | 8-K | 3/12/12 |
| (v) | Tenth Supplemental Indenture, dated as of March 19, 2015, by and between Registrant and Regions Bank, as Trustee, designating and outlining the terms and conditions of Registrant's 5.625% Senior Notes, Series X, due 2025. | Registrant | 8-K | 3/19/15 |
| b. | Indenture, dated December 16, 2019, between Registrant and Regions Bank, as Trustee. | Registrant | 8-K | 12/16/19 | |
| (i) | First Supplemental Indenture, dated December 16, 2019, between Registrant and Regions Bank, as Trustee, designating and outlining the terms and conditions of Registrant’s 5.125% Senior Notes due 2026. | Registrant | 8-K | 12/16/19 |
| Incorporated by Reference | |
| c. | Indenture, dated January 24, 2020, between Registrant and Wells Fargo Bank, National Association, as Trustee and Notes Collateral Agent, designating and outlining the terms and conditions of Registrant’s 4.000% Senior Secured Notes due 2027. | Registrant | 8-K | 1/24/20 | |
| d. | Indenture, dated November 27, 2020, among Registrant, as Issuer, and Regions Bank, as Trustee, designating and outlining the terms and conditions of Registrant, Inc. 4.500% Senior Notes due 2029. | Registrant | 8-K | 11/27/20 | |
| e. | Indenture, dated June 15, 2021, among Registrant, as issuer, and Regions Bank, as trustee, relating to the issuance of Registrant’s 5.375% Senior Notes due 2029. | Registrant | 8-K | 6/15/21 | |
| f. | Indenture, dated as of March 22, 2024, among Lumen Technologies, Inc., the guarantors party thereto, Wilmington Trust, National Association, as trustee, registrar and paying agent, and Bank of America, N.A., as collateral agent, relating to the Registrant’s 4.125% Superpriority Secured Notes due 2029. | Registrant | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Lumen Technologies, Inc., as issuer, the guarantors party thereto, Wilmington Trust, National Association, as trustee, and Bank of America, N.A., as collateral agent, adding an additional guarantor of the Registrant’s 4.125% Superpriority Senior Secured Notes due 2029. | Registrant | 10-Q | 9/30/24 |
| (ii) | Second Supplemental Indenture, dated December 30, 2024, among Lumen Technologies, Inc., as issuer, the guarantors party thereto, Wilmington Trust, National Association, as trustee, and Bank of America, N.A., as collateral agent, adding an additional guarantor of the Registrant’s 4.125% Superpriority Senior Secured Notes due 2029. | Registrant | 10-K | 12/31/24 |
| g. | Indenture, dated as of March 22, 2024, among Lumen Technologies, Inc., the guarantors party thereto, Wilmington Trust, National Association, as trustee, registrar and paying agent, and Bank of America, N.A., as collateral agent, relating to the Registrant’s 4.125% Superpriority Secured Notes due 2030. | Registrant | 8-K | 3/28/24 | |
| Incorporated by Reference | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Lumen Technologies, Inc., as issuer, the guarantors party thereto, Wilmington Trust, National Association, as trustee, and Bank of America, N.A., as collateral agent, adding an additional guarantor of the Registrant’s 4.125% Superpriority Senior Secured Notes due 2030. | Registrant | 10-Q | 9/30/24 |
| (ii) | Second Supplemental Indenture, dated December 30, 2024, among Lumen Technologies, Inc., as issuer, the guarantors party thereto, Wilmington Trust, National Association, as trustee, and Bank of America, N.A., as collateral agent, adding an additional guarantor of the Registrant’s 4.125% Superpriority Senior Secured Notes due 2030. | Registrant | 10-K | 12/31/24 |
| h. | Indenture, dated September 24, 2024, among Lumen Technologies, Inc., as issuer, the guarantors party thereto, Regions Bank, as trustee, and Bank of America, N.A., as collateral agent, designating and outlining the terms and conditions of the Registrant’s 10.000% Senior Notes due 2032 issued thereunder. | Registrant | 8-K | 9/24/24 | |
| (i) | First Supplemental Indenture, dated December 30, 2024, among Lumen Technologies, Inc., as issuer, the guarantors party thereto, Regions Bank, as trustee, and Bank of America, N.A., as collateral agent, adding an additional guarantor of the Registrant’s 10.000% Senior Secured Notes due 2032. | Registrant | 10-K | 12/31/24 |
| 4.7 | Instruments relating to indebtedness of subsidiaries of Qwest Communications International, Inc. | |
| a. | Indenture, dated as of April 15, 1990, by and between The Mountain States Telephone and Telegraph Company (currently named Qwest Corporation) and The First National Bank of Chicago, under which Qwest Corporation's 7.375% Notes due 2030 were issued. | Qwest | 10-K | 12/31/02 | |
| (i) | First Supplemental Indenture, dated as of April 16, 1991, by and between U S WEST Communications, Inc. (currently named Qwest Corporation) and The First National Bank of Chicago. | Qwest | 10-K | 12/31/02 |
| Incorporated by Reference | |
| b. | Indenture, dated as of April 15, 1990, by and between Northwestern Bell Telephone Company (predecessor to Qwest Corporation) and The First National Bank of Chicago, under which Qwest Corporation's 7.250% Notes due 2025 and 7.750% Notes due 2030 were issued. | Registrant | 10-Q | 3/31/12 | |
| (i) | First Supplemental Indenture, dated as of April 16, 1991, by and between U S WEST Communications, Inc. (currently named Qwest Corporation) and The First National Bank of Chicago. | Qwest | 10-K | 12/31/02 |
| c. | Indenture, dated as of June 29, 1998, by and among U S WEST Capital Funding, Inc. (currently named Qwest Capital Funding, Inc.), U S WEST, Inc. (predecessor to Qwest Communications International Inc.) and The First National Bank of Chicago, as trustee, under which the 6.875% Notes due 2028 and 7.750% Notes due 2031 of U S WEST Capital Funding, Inc. were issued. | QwestParent | 8-K | 11/18/98 | |
| (i) | First Supplemental Indenture, dated as of June 30, 2000, by and among U S WEST Capital Funding, Inc. (currently named Qwest Capital Funding, Inc.), U S WEST, Inc. (predecessor to Qwest Communications International Inc.) and Bank One Trust Company, N.A., as trustee. | QwestParent | 10-Q | 6/30/00 |
| d. | Indenture, dated as of October 15, 1999, by and between US West Communications, Inc. (currently named Qwest Corporation) and Bank One Trust Company, N.A., as trustee. | Qwest | 10-K | 12/31/99 | |
| (i) | Sixteenth Supplemental Indenture, dated as of August 22, 2016, by and between Qwest Corporation and U.S. Bank National Association, designating and outlining the terms and conditions of Qwest 6.500% Notes due 2056. | Qwest | 8-A | 8/22/16 |
| (ii) | Seventeenth Supplemental Indenture dated as of April 27, 2017, by and between Qwest Corporation and U.S. Bank National Association, designating and outlining the terms and conditions of Qwest Corporation's 6.750% Notes due 2057. | Qwest | 8-A | 4/27/17 |
| 4.8 | Instruments relating to indebtedness of the financing subsidiary of Level 3 Parent, LLC. | |
| Incorporated by Reference | |
| a. | Indenture, dated as of December 23, 2025, among Level 3 Parent, LLC and the other guarantors party thereto, Level 3 Financing, Inc., as Issuer, and U.S. Bank Trust Company, National Association, as trustee, relating to the 8.5% Senior Notes due 2036 of Level 3 Financing, Inc. | Level 3 | 8-K | 12/23/25 | |
| b. | Indenture, dated August 18, 2025, among Level 3 Parent, LLC, as Guarantor, Level 3 Financing, Inc., as Issuer, U.S. Bank Trust Company, National Association, as Trustee, and Wilmington Trust, National Association, as Collateral Agent, relating to the 7.000% First Lien notes due 2034 of Level 3 Financing, Inc. | Level 3 | 8-K | 8/18/25 | |
| c. | Indenture, dated June 30, 2025, among Level 3 Parent, LLC, as Guarantor, Level 3 Financing, Inc., as Issuer, U.S. Bank Trust Company, National Association, as Trustee, and Wilmington Trust, National Association, as Collateral Agent, relating to the 6.875% First Lien Notes due 2033 of Level 3 Financing, Inc. | Level 3 | 8-K | 6/30/25 | |
| d. | Indenture, dated as of September 25, 2019, among Level 3 Parent, LLC, as Guarantor, Level 3 Financing, Inc., as Issuer, and the Bank of New York Mellon Trust Company, N,A., as Trustee, relating to the 4.625% Senior Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 8-K | 9/26/19 | |
| (i) | First Supplemental Indenture, dated as of March 2, 2020, among Level 3 Parent LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, designating and outlining the terms and conditions of Level 3 Communications, LLC's unsecured guarantee of the 4.625% Senior Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| (ii) | Second Supplemental Indenture, dated as of March 2, 2020, among Level 3 Parent LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, relating to the subordination in any bankruptcy, liquidation or winding up proceeding of the guarantee by Level 3 Communications, LLC of the 4.625% Senior Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| Incorporated by Reference | |
| (iii) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 4.625% Senior Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| (iv) | Fourth Supplemental Indenture, dated as of August 28, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 4.625% Senior Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| e. | | Indenture, dated as of November 29, 2019, among Level 3 Parent, LLC and the other guarantors party thereto, Level 3 Financing, Inc., as Issuer, and The Bank of New York Mellon Trust Company, N,A., as Trustee and Notes Collateral Agent, designating and outlining the terms and conditions of the 3.400% Senior Secured Notes due 2027 Level 3 Financing, Inc. | Level 3 | 8-K | 12/4/19 |
| (i) | Supplemental Indenture, dated as of April 15, 2020, among Level 3 Financing, Inc., as issuer, The Bank of New York Mellon Trust Company, N.A., as trustee, and Level 3 Parent, LLC and several of its subsidiaries, as guarantors, designating and outlining the terms and conditions of the secured guarantees of the 3.400% Senior Secured Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| (ii) | Supplement, dated as of October 26, 2023, to the Supplemental Indenture dated as of April 15, 2020, among Level 3 Financing, Inc., as Issuer, The Bank of New York Mellon Trust Company, N.A., as Trustee and Notes Collateral Agent, and Level 3 Parent, LLC and several of its subsidiaries, as guarantors, clarifying which subsidiaries are guarantors of the 3.400% Senior Secured Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/23 |
| Incorporated by Reference | |
| (iii) | Second Supplemental Indenture, dated as of December 29, 2023, among Level 3 Financing, Inc., on behalf of itself as issuer and certain specified existing guarantors, The Bank of New York Mellon Trust Company, N.A., as trustee and collateral agent, Level 3 Parent, LLC, as guarantor, and several subsidiaries thereof, designating such subsidiaries as additional guarantors of the 3.400% Senior Secured Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/23 |
| (iv) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.400% Senior Secured Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| (v) | Fourth Supplemental Indenture, dated as of August 28, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.400% Senior Secured Notes due 2027 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| f. | Indenture, dated as of November 29, 2019, among Level 3 Parent, LLC and the other guarantors party thereto, Level 3 Financing, Inc., as Issuer, and The Bank of New York Mellon Trust Company, N,A., as Trustee and Notes Collateral Agent, designating and outlining the terms and conditions of the 3.875% Senior Secured Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 12/4/19 | |
| (i) | Supplemental Indenture, dated as of April 15, 2020, among Level 3 Financing, Inc., as issuer, The Bank of New York Mellon Trust Company, N.A., as trustee, and Level 3 Parent, LLC and several of its subsidiaries, as guarantors, designating and outlining the terms and conditions of the secured guarantees of the 3.875% Senior Secured Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| Incorporated by Reference | |
| (ii) | Supplement, dated as of October 26, 2023, to the Supplemental Indenture dated as of April 15, 2020, among Level 3 Financing, Inc., as Issuer, The Bank of New York Mellon Trust Company, N.A., as Trustee and Notes Collateral Agent, and Level 3 Parent, LLC and several of its subsidiaries, as guarantors, clarifying which subsidiaries are guarantors of the 3.875% Senior Secured Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/23 |
| (iii) | Second Supplemental Indenture, dated as of December 29, 2023, among Level 3 Financing, Inc., on behalf of itself as issuer and certain specified existing guarantors, The Bank of New York Mellon Trust Company, N.A., as trustee and collateral agent, Level 3 Parent, LLC, as guarantor, and several subsidiaries thereof, designating such subsidiaries as additional guarantors of the 3.875% Senior Secured Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/23 |
| (iv) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.875% Senior Secured Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| (v) | Fourth Supplemental Indenture, dated as of August 28, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.875% Senior Secured Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| g. | Indenture, dated as of June 15, 2020, among Level 3 Parent, LLC, as Guarantor, Level 3 Financing, Inc., as Issuer, and The Bank of New York Mellon Trust Company, N.A., as Trustee, relating to the 4.250% Senior Notes due 2028 of Level 3 Financing, Inc. | Level 3 | 8-K | 6/15/20 | |
| Incorporated by Reference | |
| (i) | First Supplemental Indenture, dated as of December 21, 2020, among Level 3 Parent LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, designating and outlining the terms and conditions of Level 3 Communications, LLC’s unsecured guarantee of the 4.250% Senior Notes due 2028 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| (ii) | Second Supplemental Indenture, dated as of December 21, 2020, among Level 3 Parent LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, relating to the subordination in any bankruptcy, liquidation or winding up proceeding of the guarantee by Level 3 Communications, LLC of the 4.250% Senior Notes due 2028 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| (iii) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 4.250% Senior Notes due 2028 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| (iv) | Fourth Supplemental Indenture, dated as of August 28, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 4.250% Senior Notes due 2028 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| h. | Indenture, dated August 12, 2020, among Level 3 Parent, LLC, as Guarantor, Level 3 Financing, Inc., as Issuer, and The Bank of New York Mellon Trust Company, N.A., as Trustee, relating to the 3.625% Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 8/12/20 | |
| Incorporated by Reference | |
| (i) | First Supplemental Indenture, dated as of December 21, 2020, among Level 3 Parent LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, designating and outlining the terms and conditions of Level 3 Communications, LLC’s unsecured guarantee of the 3.625% Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| (ii) | Second Supplemental Indenture, dated as of December 21, 2020, among Level 3 Parent LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, relating to the subordination in any bankruptcy, liquidation or winding up proceeding of the guarantee by Level 3 Communications, LLC of the 3.625% Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/20 |
| (iii) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.625% Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| (iv) | Fourth Supplemental Indenture, dated as of August 28, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.625% Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| i. | Indenture, dated January 13, 2021, among Level 3 Parent, LLC, as Guarantor, Level 3 Financing, Inc., as Issuer, and The Bank of New York Mellon Trust Company, N.A., as Trustee, relating to the 3.750% Sustainability-Linked Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 1/13/21 | |
| Incorporated by Reference | |
| (i) | First Supplemental Indenture, dated as of May 7, 2021, among Level 3 Parent, LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, designating and outlining the terms and conditions of Level 3 Communications, LLC’s unsecured guarantee of the 3.750% Sustainability-Linked Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/21 |
| (ii) | Second Supplemental Indenture, dated as of May 7, 2021, among Level 3 Parent, LLC, as guarantor, Level 3 Communications, LLC, as guarantor, Level 3 Financing, Inc., as issuer, and The Bank of New York Mellon Trust Company, N.A., as trustee, relating to the subordination in any bankruptcy, liquidation or winding up proceeding of the guarantee by Level 3 Communications, LLC of the 3.750% Sustainability-Linked Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/21 |
| (iii) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.750% Sustainability-Linked Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| (iv) | Fourth Supplemental Indenture, dated as of August 28, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 3.750% Sustainability-Linked Senior Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| j. | Indenture dated March 31, 2023, among Level 3 Financing, Inc., as Issuer, Level 3 Parent, LLC, as Guarantor, the subsidiary guarantors party thereto, and The Bank of New York Mellon Trust Company, as Trustee and Note Collateral Agent, designating and outlining the terms and conditions of the 10.500% Senior Secured Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/31/23 | |
| Incorporated by Reference | |
| (i) | Supplemental Indenture, dated as of October 23, 2023, among Level 3 Financing, Inc., as Issuer, The Bank of New York Mellon Trust Company, N.A., as Trustee and Notes Collateral Agent, and Level 3 Parent, LLC and several of its subsidiaries, as guarantors, designating and outlining the terms and conditions of certain specified secured guarantees of the 10.500% Senior Secured Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/23 |
| (ii) | Second Supplemental Indenture, dated as of December 29, 2023, among Level 3 Financing, Inc., on behalf of itself as issuer and certain specified existing guarantors, The Bank of New York Mellon Trust Company, N.A., as trustee and collateral agent, Level 3 Parent, LLC, as guarantor, and several subsidiaries thereof, designating such subsidiaries as additional guarantors of the 10.500% Senior Secured Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 10-K | 12/31/23 |
| (iii) | Third Supplemental Indenture, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., the guarantors party thereto, and the Bank of New York Mellon Trust Company, N.A., as trustee and note collateral agent, relating to the 10.500% Senior Secured Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 |
| k. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 10.500% First Lien Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 10.500% First Lien Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| Incorporated by Reference | |
| l. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 11.000% First Lien Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 11.000% First Lien Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| m. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 10.750% First Lien Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 10.750% First Lien Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| n. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 4.875% Second Lien Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 4.875% Second Lien Notes due 2029 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| Incorporated by Reference | |
| o. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 4.500% Second Lien Notes due 2030 Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 4.500% Second Lien Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| (ii) | Second Supplemental Indenture, dated as of December 23, 2025, among Level 3 Parent, LLC and the other guarantors party thereto, Level 3 Financing, Inc., as Issuer, and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 4.500% Second Lien Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 8-K | 12/23/25 |
| p. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 3.875% Second Lien Notes due 2030 Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 3.875% Second Lien Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| (ii) | Second Supplemental Indenture, dated as of December 23, 2025, among Level 3 Parent, LLC and the other guarantors party thereto, Level 3 Financing, Inc., as Issuer, and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 3.875% Second Lien Notes due 2030 of Level 3 Financing, Inc. | Level 3 | 8-K | 12/23/25 |
| Incorporated by Reference | |
| q. | Indenture, dated as of March 22, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, the other guarantors party thereto and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 4.000% Second Lien Notes due 2031 of Level 3 Financing, Inc. | Level 3 | 8-K | 3/28/24 | |
| (i) | Supplemental Indenture, dated October 31, 2024, among Level 3 Parent, LLC, as guarantor, Level 3 Financing, Inc., as issuer, the guarantors party thereto, and Wilmington Trust, National Association, as trustee and collateral agent, adding additional guarantors of the 4.000% Second Lien Notes due 2031 of Level 3 Financing, Inc. | Level 3 | 10-Q | 9/30/24 |
| (ii) | Second Supplemental Indenture, dated as of December 23, 2025, among Level 3 Parent, LLC and the other guarantors party thereto, Level 3 Financing, Inc., as Issuer, and Wilmington Trust, National Association, as trustee and collateral agent, relating to the 4.000% Second Lien Notes due 2031 of Level 3 Financing, Inc. | Level 3 | 8-K | 12/23/25 |
| r. | Indenture, dated September 24, 2024, among Level 3 Financing, Inc., as issuer, Level 3 Parent, LLC, as a guarantor, certain other guarantors party thereto, U.S. Bank Trust Company, National Association, as trustee, and Wilmington Trust, National Association, as collateral agent, designating and outlining the terms and conditions of 10.000% Second Lien Notes due 2032 issued thereunder by Level 3 Financing, Inc. | Level 3 | 8-K | 9/24/24 | |
| s. | Fourteenth Amendment Agreement, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., as borrower, the guarantors party thereto, the lenders party thereto and Merrill Lynch Capital Corporation, as administrative agent and collateral agent, to the Amended and Restated Credit Agreement, dated as of November 29, 2019, among Level 3 Parent, LLC, Level 3 Financing, Inc., as borrower, the lenders party thereto and Merrill Lynch Capital Corporation, as administrative agent and collateral agent. | Level 3 | 8-K | 3/28/24 | |
| Incorporated by Reference | |
| t. | Credit Agreement, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., as borrower, the lenders party thereto and Wilmington Trust, National Association, as administrative agent and collateral agent. | Level 3 | 8-K | 3/28/24 | |
| (i) | First Amendment Agreement, dated as of March 27, 2025, among Level 3 Parent, LLC, Level 3 Financing, Inc., as borrower, the lenders party thereto, and Wilmington Trust, National Association, as administrative agent and collateral agent, to the Credit Agreement, dated as of March 22, 2024, among Level 3 Parent, LLC, Level 3 Financing, Inc., as borrower, the lenders party thereto, and Wilmington Trust, National Association, as administrative agent and collateral agent. | Level 3 | 10-Q | 3/31/25 |
| (ii) | Second Amendment Agreement, dated as of September 29, 2025, among Level 3 Parent, LLC, Level 3 Financing, Inc., as borrower, the lenders party thereto and Wilmington Trust, National Association, as administrative agent and collateral agent. | Level 3 | 8-K | 9/29/25 |
| 10.1 | Second Amended and Restated 2018 Equity Incentive Plan, as amended and restated through May 17, 2023. | Registrant | 8-K | 5/17/23 | |
| 10.2 | 2024 Equity Incentive Plan of Lumen Technologies, Inc. | Registrant | S-8 | 5/16/24 | |
| a. | Form of Restricted Stock Agreement for annual equity grants to non-management directors beginning in 2018. | Registrant | 10-Q | 6/30/18 | |
| b. | Form of Restricted Stock Agreement for annual time-based equity grants to certain executive officers. | Registrant | 10-K | 12/31/21 | |
| c. | Form of Restricted Stock Agreement for annual performance-based equity grants to certain executive officers. | Registrant | 10-K | 12/31/21 | |
| d. | Form of Restricted Stock Agreement for annual time-based equity grants to Kate Johnson. | Registrant | 10-K | 12/31/22 | |
| 10.3 | Supplemental Defined Benefit Pension Plan, effective as of January 1, 2012. | Registrant | 10-K | 12/31/11 | |
| 10.4 | Short-Term Incentive Plan (effective January 1, 2025). | Registrant | 10-K | 12/31/24 | |
| 10.5 | Form of Indemnification Agreement entered into between Registrant and each of its directors on or after February 24, 2016. | Registrant | 8-K | 2/29/16 | |
| Incorporated by Reference | |
| 10.6 | Form of Indemnification Agreement entered into between Registrant and each of its officers on or after February 24, 2016. | Registrant | 8-K | 2/29/16 | |
| 10.7 | Change of Control Agreement, by and between Kate Johnson and Registrant. | Registrant | 10-K | 12/31/22 | |
| 10.8 | Form of Change of Control Agreement, on or after January 1, 2011, between Registrant and each of its other executive officers. | Registrant | 10-K | 12/31/10 | |
| 10.9 | Form of Change of Control Agreement between Registrant and its non-CEO California-based executive officers. | Registrant | 10-Q | 6/30/24 | |
| 10.10 | Lumen Executive Severance Plan, as amended and restated effective January 1, 2025. | Registrant | 10-K | 12/31/24 | |
| 10.11 | Retirement Benefit Plan | Registrant | 10-K | 12/31/24 | |
| 10.12 | Amended and Restated CenturyLink, Inc. Bonus Life Insurance Plan for Executive Officers, dated as of April 3, 2008. | Registrant | 10-Q | 3/31/08 | |
| a. | First Amendment to Plan. | Registrant | 10-Q | 9/30/10 |
| 10.13 | Registrant's Supplemental Savings Plan, as amended and restated. | Registrant | 10-Q | 3/31/22 | |
| 10.14 | Non-Employee Director Compensation Plan, effective August 16, 2023. | Registrant | 10-K | 12/31/24 | |
| 10.15 | Non-Employee Director Deferred Compensation Plan, effective April 18, 2019 (updated for branding as of October 2020). | Registrant | 10-K | 12/31/21 | |
| 10.16 | Offer Letter dated September 12, 2022, between Registrant and Kate Johnson.(5) | Registrant | 8-K | 9/13/22 | |
| 10.17 | Amended and Restated Transaction Support Agreement by and among Registrant, Level 3 Financing, Inc., Qwest Corporation, and the Consenting Parties identified therein, dated January 22, 2024. | Registrant | 8-K | 1/25/24 | |
| 10.18 | Director Charitable Contribution Program | Registrant | 10-Q | 9/30/25 | |
| 19 | Insider Trading Policy of Registrant. | Registrant | 10-K | 12/31/24 | |
| 21 | Subsidiaries of Registrant. | | Filed |
| 23 | Independent Registered Public Accounting Firm Consent. | | Filed |
| 31.1 | Certification of the Chief Executive Officer of Lumen Technologies, Inc. furnished pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | | Filed |
| 31.2 | Certification of the Chief Financial Officer of Lumen Technologies, Inc. furnished pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. | | Filed |
| 32.1 | Certification of the Chief Executive Officer of Lumen Technologies, Inc. pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. | | Furnished |
| Incorporated by Reference | |
| 32.2 | Certification of the Chief Financial Officer of Lumen Technologies, Inc. pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. | | Furnished |
| 97 | Registrant’s Policy Relating to Recovery of Erroneously Awarded Compensation, adopted August 16, 2023. | Registrant | 10-K | 12/31/24 | |
| 101 | Financial statements from the annual report on Form 10-K of Registrant for the period ended December 31, 2025, formatted in Inline XBRL: (i) the Consolidated Statements of Operations, (ii) the Consolidated Statements of Comprehensive (Loss) Income, (iii) the Consolidated Balance Sheets, (iv) the Consolidated Statements of Cash Flows, (v) the Consolidated Statements of Stockholders' (Deficit) Equity and (vi) the Notes to Consolidated Financial Statements. | | Filed |
| 104 | Cover page formatted as Inline XBRL and contained in Exhibit 101. | | Filed |
(1)Certain of the items in Sections 4.6, 4.7 and 4.8 may (i) omit supplemental indentures or other instruments governing debt that has been retired, or (ii) refer to trustees who may have been replaced, acquired or affected by similar changes. In accordance with applicable rules of the SEC, copies of certain instruments defining the rights of holders of certain of our long-term debt are not filed herewith.
(2) Exhibits 10.1 to 10.18 are management contracts or compensatory plans or arrangements.
(3) For purposes of this column, (i) “Registrant” means Lumen Technologies, Inc. (File No. 001-07784), formerly named CenturyLink, Inc., CenturyTel, Inc. and Century Telephone Enterprises, Inc., (ii) “Qwest” means Qwest Corporation (File No. 001-03040), (iii) “Qwest Parent” means Qwest Communications International, Inc. (File No. 001-15577), and (iv) “Level 3” means Level 3 Parent, LLC (File No. 001-35134), successor-in-interest to Level 3 Communications, Inc.
(4) Represents (i) the date appearing on the cover page of each applicable 10-K or 10-Q report and (ii) the date of filing with respect to all other reports.
(5) Present information regarding the executive's initial compensation only.
