Turkcell

Turkey ★★★ Verified Customer: 532

Turkcell is Turkey's largest mobile operator, founded 1994. Best coverage: 99.8% 2G / 95% 3G population in 2015, 4.5G (commercial since 2016, LTE Advanced) across all 81 provinces. Won 5G spectrum auction in 2025: 700MHz 2x10MHz + 3.5GHz 140MHz (largest among three operators), 5G nationwide deployment planned to start April 1, 2026. All Turkish prepaid SIMs exclude international roaming (work only in Turkey + Northern Cyprus KKTC, except Türk Telekom). Turkish SIM requires passport registration, IMEI registration mandatory (120-day grace period, after which phone is locked). Main USSD: *100# for balance (main entry), *123# for balance + data usage + bundle remaining (service menu), 8091 IVR for balance service, *159# for data usage + bundle query, *#06# for IMEI (universal code), SMS shortcode 2222 with KALAN ('remaining') for bundle balance, SMS shortcode 2200 with KALAN for data balance (alternative). Customer service: 532 (on-net IVR), +90 532 532 0000 (international), 444 0535 (domestic live support). MyTurkcell App for full management. Country code +90.