SEC Form 6-K filed by Turkcell Iletisim Hizmetleri AS

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 February 2025

Commission File Number: 001-15092

TURKCELL ILETISIM HIZMETLERI A.S.

(Translation of registrant’s name into English)

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 February 7, 2025, announcing the capital increase of the registrant's subsidiary, CJSC Belarusian Telecommunications Network.

Istanbul, February 07, 2025

Announcement Regarding the Capital Increase in BeST

The capital of our Company's subsidiary, CJSC Belarusian Telecommunications Network ("BeST"), has been increased by BYN 40,906,138.50 from BYN 1,322,959,530 to BYN 1,363,865,668.50. Our Company's pre-emption rights with respect to the capital increase have been fully paid.

For more information:

Turkcell Investor Relations

[email protected]

Tel: + 90 212 313 1888

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.