What is the Kyodai number? 25 August 2026 12:52 Updated Your Kyodai number is your unique customer number. You can find your Kyodai number on your Smart Card, Kyodai Red Card, or in the KyodaiApp. In the app, it's displayed in the upper-left corner of the screen. Do you still need help? Speak to us Related articles How do I create my 4-digit PIN in the Kyodai App? How do I send money using my Japan Post Bank Card? How do I upload my My Number (Individual Number) in the Kyodai App? How to register with Kyodai Remittance Can I use biometric security to log in to my KyodaiApp?