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Japan, Connected the Moment You Land
🇯🇵JAPAN
Instant connectivity via eSIM, zero roaming fees, and a 2‑minute setup—premium coverage across Japan from day one.
Do you need more data or a longer stay?
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Network Coverage in Japan
Reliable connectivity powered by local carrier partnerships
Coverage Quality
Overall network coverage assessment
Excellent Coverage
95%Supported Technologies
4G
3G
5G
LTE-M
Japan has excellent mobile coverage in cities and along major travel corridors. NTT DoCoMo provides the broadest nationwide footprint (including 5G in many urban areas), while KDDI offers strong 4G coverage. Travelers will have reliable data/service in most tourist destinations, with occasional weak spots in mountains, remote islands, and tunnels.
Partner Networks
Local carriers providing coverage
K
KDDI
Partner Network
N
NTT DoCoMo
Partner Network