Which local mobile networks does EastESIM utilize for its Japan eSIM to ensure optimal connectivity and speed?

To provide you with the best possible speed and coverage across Japan, EastESIM partners with the country's leading Tier-1 networks. This typically includes major carriers like NTT Docomo, SoftBank, and au. These collaborations ensure you benefit from the fastest available 4G/LTE (and increasingly 5G) speeds, whether you're navigating the bustling streets of Shinjuku, exploring the serene temples of Kyoto, or traveling by Shinkansen between cities. You can rely on a strong and consistent signal for all your travel needs, from maps to social media.