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6-K

Turkcell Iletisim Hizmetleri A S (TKC)

6-K 2025-07-29 For: 2025-07-29
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Added on April 08, 2026

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

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of July 2025

Commission File Number: 001-15092

TURKCELL ILETISIM HIZMETLERI A.S.

(Translation of registrant’s name into English)

Turkcell Küçükyalı Plaza

Aydınevler Mahallesi İnönü Caddesi No:20

Küçükyalı Ofispark

34854 Maltepe

Istanbul, Türkiye

(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:

x Form 20-F  ¨ Form 40-F

Enclosure: A press release dated July 29, 2025 announcing the release date of the registrant's second quarter financial results.

Istanbul, July 29, 2025


Announcement Regarding the Release Date of2^nd^ Quarter 2025 Financial Results

Our Company's financial results for the period from April 1, 2025 to June 30, 2025 are scheduled to be publicly announced on August 13, 2025 after the Borsa Istanbul trading hours.


For more information:

Turkcell Investor Relations

investor.relations@turkcell.com.tr

Tel: + 90 212 313 1888 ****

1

SIGNATURES

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

TURKCELL ILETISIM HIZMETLERI A.S.
Date: July 29, 2025 By: /s/ Özlem Yardım
Name: Özlem Yardım
Title: Investor Relations Corporate Finance Director
TURKCELL ILETISIM HIZMETLERI A.S.
--- --- --- ---
Date: July 29, 2025 By: /s/ Kamil Kalyon
Name: Kamil Kalyon
Title: Chief Financial Officer