Turkey’s telecom regulator has blocked apps and websites of many international eSIM providers, leaving travellers who wait until arrival unable to buy or manage digital SIMs. This post explains why the new data‑localisation and licensing rules exist, which providers are affected, and what travellers need to do to stay connected. It highlights eSIM Prime as the only international eSIM service still operating legally in Turkey because it partners with local carriers and stores user data on Turkish servers. Travellers can buy and activate their Turkey eSIM plan from eSIM Prime before departure to enjoy reliable, affordable data when they arrive. We also answer common questions: which eSIMs remain available, whether travellers have been warned about the restrictions, and why Turkey banned certain eSIM apps. The bottom line: plan ahead, choose a compliant provider like eSIM Prime and avoid getting caught offline.