Which procedure do you need?
Answer up to four yes / no questions. This does not collect any personal data.
When you go to a Japanese phone shop or apply online, the first thing that decides everything else is which procedure you actually need. People often ask for the wrong one and waste a trip.
- New contract — a brand-new line, usually with a new phone number.
- MNP — move to a different carrier and keep your current number.
- Device upgrade — stay with your carrier and number, get a new phone.
- SIM change — same carrier, number and phone, only the SIM changes (for example physical SIM to eSIM).
- Plan change — stay with the same carrier or brand group, change only the pricing plan. This is not the same as MNP.
The four short questions below (yes / no) point you to the right one. No personal data is collected.