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 August 2025 Commission File Number: 001-15092 TURKCELL İLETİŞİM HİZMETLERİ A.Ş. (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 m ...