文件

展品10.2

第四增補契約

第四個補充債券契約（本“補充契約”)日期為2024年8月28日，由特許等級3家長LLC，一家特拉華有限責任公司（“等級3家長”), 特許等級3融資公司，一家特拉華公司（“薪酬第3級通信有限責任公司，一家特拉華有限責任公司（LLC）。Level 3 LLC紐約梅隆銀行信託公司，是根據以下提到的債券契約的受託人和票據抵押代理（Trust）。信託和其他各方（每個為一個Trust）。新擔保人，以及其他各方（包括Level 3母公司和Level 3 LLC，這些為Trust的集體）。保證人”).

見證：

鑑於，發行人、Level 3母公司和其他擔保人已於前開日期之前，即2019年11月29日簽署並交付托管人一份債務契約（簽署、修訂、重簽、補充或否則修改本日之前的時間），規定發行人於2027年到期之3.400%債券的發行抵押權契約；本說明書中使用但未在此處界定的大寫術語具有債券中分配的含義

鑑於，本債券允許新擔保人依據補充債務契約向受託人交付補充債務契約，規定新擔保人應無條件擔保發行人根據擔保按此處所述的條款和條件下的證券之所有義務

鑑於，本補充債券所載的保證將構成“債券保證”，新擔保人將在此處所述的條款和條件下各自構成“擔保人”

鑑於，根據債務契約第801(8)條，受託人、發行人和擔保人得授權簽署並交付這份補充債務契約；並

WHEREAS, all acts and requirements necessary to make this Supplemental Indenture the legal, valid and binding obligation of Level 3 Parent, Level 3 LLC, the Issuer and the New Guarantors have been done.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the parties hereto agree as follows:

1.Agreement to Guaranty. Each of the New Guarantors agrees, jointly and severally with all existing Guarantors, to unconditionally guarantee the Issuer’s obligations under the Securities and the Indenture on the terms and subject to the conditions set forth in Article Twelve of the Indenture and to be bound by all other applicable provisions of the Indenture and the Securities.

2.未來擔保人. Level 3 Parent and the Issuer will endeavor to cause any Subsidiary thereof that guarantees the Credit Agreement (as defined below) to Guarantee the Securities to the extent that doing so does not result in extra cost or burden to them or their Subsidiaries, as determined by them in their sole discretion, and subject to receipt of any necessary regulatory approvals, it being understood that this covenant does not require a Guarantee to be provided within any specified time period.

3.Future Release of Note Guarantees. With respect to any Guarantor who is not otherwise obligated under the Indenture to guarantee the Securities, other than due to its voluntary Guarantee pursuant hereto, (x) the Issuer may, by delivery of a supplemental indenture in accordance with Section 801(8) of the Indenture, release such Guarantor from its Note Guarantee from time-to-time and (y) the Note Guarantee thereof shall be automatically and unconditionally released if such Guarantor ceases to guarantee (1) the Credit Agreement among Level 3 Parent, the Issuer, the lenders party thereto and Wilmington Trust, National Association, dated as of March 22, 2024, as amended, waived, or modified from time-to-time (as it may be so amended, waived or modified, the “信貸協議”) or (2) if the Credit Agreement is no longer outstanding, any replacement thereof (as determined by the Issuer).

4.繼承人和受讓人. This Supplemental Indenture shall be binding upon each party hereto and its successors and assigns.

5.不豁免. Neither a failure nor a delay on the part of either the Trustee or the Holders in exercising any right, power or privilege under this Supplemental Indenture, the Indenture or the Securities shall operate as a waiver thereof, nor shall a single or partial exercise thereof preclude any other or further exercise of any right, power or privilege. The rights, remedies and benefits of the Trustee and the Holders herein and therein expressly specified are cumulative and not exclusive of any other rights, remedies or benefits which either may have under this Supplemental Indenture, the Indenture or the Securities at law, in equity, by statute or otherwise.

6.Modification. No modification, amendment or waiver of any provision of this Supplemental Indenture, nor the consent to any departure by any New Guarantor therefrom, shall in any event be effective unless the same shall be in writing and signed by the Trustee, and then such waiver or consent shall be effective only in the specific instance and or the purpose for which given. No notice to or demand on any New Guarantor in any case shall entitle the New Guarantors to any other further notice or demand in the same, similar or other circumstances.

7.律師意見。與補充信託契約之執行和交付同時，發行人應根據信託契約的要求向受託人提供律師意見。

8.批准契約；補充信託契約的一部分。除本次明確修改外，信託契約在所有方面均得到確認和證實，其所有條款、條件和規定均保持完全有效。本補充信託契約應作為信託契約的一部分，每一位自此前或以後經確認和交付的有價證券持有人均應受此拘束。

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9.管轄法. 此補充信託契約將受紐約州法律管轄，並依據該法律進行解釋，但不適用於法律衝突原則，以對其他司法管轄區的法律適用。

10.對照合約各方可能簽署本補充信託契約的任意份數副本。每份已簽名的副本應視為有效原件，但所有副本共同構成同一協議。

11.標題的影響本節標題僅供方便參考，並不影響其解釋。

12.信託受託人不就本附加契約之有效性或充足性作出陳述。本卷款及聲明視為發行人和保證方的表述，而非受託人的表述。

13.OFAC制裁發行人和新保證方各自陳述並保證，其本身或其任何子公司、董事、高級管理人員或據其所知之聯屬，並非美國政府（包括美國財政部財政資產控制辦公室（“OFAC”）、聯合國安全理事會、歐盟、英國財政部或其他相關制裁機構）實施的任何制裁的標的或對象。

[本页其余部分故意空白]

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特此证明，本补充契约经各方签署，于上述日期正式生效。

LEVEL 3 PARENt, LLC,

作者： /s/ Rahul Modi
名稱: Rahul Modi
職稱: 高級副總裁及司庫

LEVEL 3 FINANCING, INC.,

By: /s/ Rahul Modi
姓名：Rahul Modi
職稱：高級副總裁兼財務主管

LEVEL 3 COMMUNICATIONS，LLC

簽發： Rahul Modi
姓名：Rahul Modi
職稱：高級副總裁兼財務主管

[供補充至2027年到期的3.400%債券的補充契約簽署頁面]

BROADWING，LLC

BTE EQUIPMENt，LLC

GLOBAL CROSSING NORTH AMERICAN HOLDINGS，INC.

GLOBAL CROSSING NORTH AMERICA，INC.

LEVEL 3 ENHANCED SERVICES，LLC

LEVEL 3 INTERNATIONAL，INC.

LEVEL 3 TELECOm HOLDINGS II，LLC

LEVEL 3 TELECOm HOLDINGS，LLC

LEVEL 3 TELECOM管理有限公司

阿拉巴馬州LEVEL 3 TELECOM有限責任公司

阿肯色州LEVEL 3 TELECOM有限責任公司

加利福尼亞州LEVEL 3 TELECOM有限合夥

華盛頓特區LEVEL 3 TELECOM有限責任公司

愛達荷州LEVEL 3 TELECOM有限責任公司

伊利諾州LEVEL 3 TELECOM有限責任公司

愛荷華州LEVEL 3 TELECOM有限責任公司

LOUISIANA州的LEVEL 3 TELECOm LLC

MISSISSIPPI州的LEVEL 3 TELECOm LLC

NEW MEXICO州的LEVEL 3 TELECOm LLC

NORTH CAROLINA州的LEVEL 3 TELECOm LP

OHIO州的LEVEL 3 TELECOm LLC

OKLAHOMA州的LEVEL 3 TELECOm LLC

OREGON州的LEVEL 3 TELECOm LLC

SOUTH CAROLINA州的LEVEL 3 TELECOm LLC

LEVEL 3德州電訊有限公司

LEVEL 3猶他州電訊有限公司

LEVEL 3維吉尼亞州電訊有限公司

LEVEL 3華盛頓州電訊有限公司

LEVEL 3威斯康辛州有限合夥

LEVEL 3電訊有限公司

VYVX有限公司

By: /s/ Rahul Modi
姓名: Rahul Modi
職稱: 高級副總裁 & 國庫

[補充2027年到期3.400%高級票據的補充契約簽署頁]

紐約梅隆銀行信託公司，作為受託人和票據擔保代理

By: /s/ April Bradley
姓名：April Bradley
職稱：副總裁

[2027年到期的3.400%債券補充信託文件簽署頁面]