[My Number Card] Finally Answering What You Can’t Ask Now! A Roundup of Trivia Quizzes and Fun Facts
The My Number Card is a familiar part of our daily lives, and it’s actually packed with little-known facts.
“How many times can you enter the PIN incorrectly?” “When do the electronic certificates expire?” “Where do you report it if you lose the card?” We’ll cover these surprisingly unfamiliar basics in a quiz format! From practical knowledge you’ll need in everyday life to fun trivia, you’re sure to discover something new.
We’ll explain useful information in a clear, easy-to-understand way.
It’s full of tidbits you’ll want to share, so be sure to pass them along to your friends and family!
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[My Number Card] Solve the “too late to ask” questions! Collection of trivia quizzes and tidbits (1–10)
Which of the following people cannot obtain a My Number Card?
- A Japanese citizen with a resident registration in Japan
- Foreign nationals who have a resident registration in Japan
- Japanese nationals who are registered as residents overseas
See the answer
Japanese nationals who are registered as residents overseas
The My Number Card is for people who have a resident record in Japan. Therefore, Japanese citizens who have moved their resident record overseas are not eligible to receive a My Number Card. If you have a resident record in Japan, foreign nationals can also obtain a My Number Card (subject to conditions such as being a mid- to long-term resident).
When I lose my My Number Card, where do I need to file a report?
- City Hall
- convenience store
- police station
See the answer
police station
When you lose your My Number card, you must first file a loss or theft report at the nearest police station to prevent unauthorized use. After submitting the report, proceed with reissuance procedures, etc., at your municipal office counter.
Until when is the My Number card itself valid?
- Five years after issuance
- Ten years after issuance
- Until age 65
See the answer
Ten years after issuance
The physical My Number Card is valid until your 10th birthday after the date of issuance if you are 20 or older (effectively 10 years). However, if you are under 20 at the time of issuance, it is valid until your 5th birthday. As the expiration date approaches, you will receive an expiration notice, so please renew your card early.
[My Number Card] Solve Your “Too Late to Ask” Questions! Collection of Trivia Quizzes and Fun Facts (11–20)
Which of the following is the name of the My Number PR character?
- MyNaBunny
- Mr. Number
- Maina-chan
See the answer
Maina-chan
The correct answer is “Maina-chan.” Maina-chan is the official PR character created to promote and raise awareness of the My Number system and My Number Card, and is modeled on a distinctive rabbit. The other options are fictional character names that do not actually exist.
What is the official name of the My Number Card?
- national identification card
- Japanese Identity Card
- Individual Number Card
See the answer
Individual Number Card
The official name of the My Number Card is “Individual Number Card.” This is also the term used in the law. Note that “My Number” refers to the 12-digit number assigned to everyone living in Japan. Since people commonly call it the My Number Card, there may not be many who know its official name.
Which of the following cannot be used with the My Number Card facial recognition system?
- Online application via smartphone
- Identity verification at the counter
- Issuance of certificates at convenience stores
See the answer
Issuance of certificates at convenience stores
At the terminals (multi-function copiers) installed in convenience stores, identity verification cannot be performed using facial recognition. Therefore, when issuing certificates at a convenience store, please authenticate with a PIN. On the other hand, facial recognition is used on smartphones and in medical institutions.
When did the My Number Card system officially begin?
- 2010
- 2013
- 2016
See the answer
2016
The My Number Card system began notifying individuals of their numbers in 2015, and official card issuance started in January 2016. Since then, the digitization of administrative procedures and the integration of various services have progressed.


