UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

For the month of October 2026

Commission File Number: 001-13464

Telecom Argentina S.A.

(Translation of registrant’s name into English)

General Hornos, No. 690, 1272

Buenos Aires, Argentina

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Telecom Argentina S.A.

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FREE TRANSLATION   Buenos Aires, October 30, 2026   Comisión Nacional de Valores

RE.: Informs resignation of Member of the Board of Directors. Article 3, Chapter I, Title XII of the Comisión Nacional de Valores´ Rules

I am writing to you as Attorney in fact of Telecom Argentina S.A. (the ‘Company’) to inform you that today the Company received a resignation letter, due to personal reasons, from Director Diego Miguel Bianchi, whose appointment was proposed by FGS Anses.

The Board of Directors of the Company will consider this resignation at its next meeting.

Sincerely,

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.