JapanMy Number
Also known as: National ID Number · マイナンバー
Specification
Format
XXXXXXXXXXXX
- X — any letter
- Length
- 12 characters
- Checksum
- Yes
Check digits are recomputed and verified.
- Embedded data
- No
This number encodes no extractable personal data.
Sample test value
605942572807This value was randomly generated to satisfy the format and check-digit rules. It is not a real ID and does not belong to any person.
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Validate a Japan My Number now — it runs in your browser and the number never leaves your device.
Try it in the validatorValidation rules for Japan come from the open-source idnumbers library. Report a format issue on GitHub