Do I need to register my phone or provide a local Japanese address to use EastESIM?

No, absolutely not! This is a significant advantage of using EastESIM for your trip to Japan. While purchasing a physical local SIM card from providers like Docomo, au, or SoftBank might sometimes involve a registration process or require a local address, EastESIM operates as a roaming data service. This means it's designed specifically for international travelers and bypasses these local requirements. You can activate your eSIM seamlessly without any need for phone registration or a Japanese residential address, ensuring you're connected to high-speed data from the moment you land in Narita or Kansai.