www.itmedia.co.jp/mobile/articles/2604/01/news125.html

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「JAPANローミング」きょう開始 災害時にライバルキャリアにつながる いま使っているスマホで使える? - ITmedia Mobile

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Apr 1, 2026, 09:34 AM

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https://www.itmedia.co.jp/mobile/articles/2604/01/news125.html

About this page

This page describes "JAPAN Roaming," a new service launched on April 1, 2026, by five major Japanese mobile carriers. During large-scale disasters or network failures, users can switch to other carriers' 4G networks if their contracted network becomes unavailable. Full roaming mode supports data communication up to 300kbps, voice calls, and SMS, compatible with iPhone 6 and later. Emergency call-only mode allows calls to emergency numbers only. Users must verify device compatibility on carrier websites and update their device OS to the latest version before using the service.

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Apr 1, 2026, 09:34 AM

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