CoreESIM provides extensive 4G/5G data coverage throughout Greece, encompassing both the mainland and its numerous islands. You can expect robust connectivity in major urban centers like Athens and Thessaloniki, as well as on popular island destinations such as Crete, Rhodes, Mykonos, and Santorini. Our network partners ensure that service extends beyond primary tourist zones, offering reliable data access across the vast majority of inhabited areas. This comprehensive reach supports seamless navigation and communication during your entire Greek journey.
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What is the geographic coverage of CoreESIM in Greece, including mainland and islands?
Updated April 22, 2026
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