Yes, EastESIM aims to keep you connected across all of Japan, including its beautiful remote islands! While you'll experience robust 4G/5G coverage in major cities like Tokyo, Kyoto, and Osaka, our network partners, such as NTT Docomo and SoftBank, extend their reach to popular island destinations. You can expect reliable service on Okinawa, Hokkaido, and many of the smaller, inhabited islands that attract travelers. This means you can share your stunning island photos, navigate local transport, and stay in touch even when far from the mainland's urban centers.
HELP CENTER
Will I have internet coverage on remote Japanese islands like Okinawa, or just on mainland Japan?
Updated April 22, 2026
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