Truly Roaming prioritizes stable and fast connectivity for digital nomads in Japan. Our eSIMs typically connect to Japan's premier mobile networks: NTT Docomo, KDDI (au), or Softbank. These carriers offer extensive 4G and 5G coverage across the country, ensuring reliable internet for video conferences in Shinjuku, uploading large files from a cafe in Osaka, or navigating public transport in Kyoto. You'll have the bandwidth you need to stay productive.
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Which local networks does Truly Roaming connect to in Japan?
Updated April 22, 2026
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