JapanMy Number
Also known asNational ID Number · マイナンバー
- ISO codes
- JPN / JP
- Region
- Asia
- Length
- 12 characters
- Checksum
- Yes
Character map
Each cell is one character of the sample test value; separators are shown as-is.
Sample test value
605942572807
This value was randomly generated to pass this country's validation rules. It is not a real ID and does not belong to any person.
(01)Country reference
Specification
- Format
- ############
- # — any digit
Documented field layout:
XXXXXXXXXXXX- Length
12 characters
- Checksum
- Yes
Check digits are recomputed and verified.
- Embedded data
- No
This number encodes no extractable personal data.
Check a Japan number now.
Validate a Japan My Number now — it runs in your browser and the number never leaves your device.
Validation rules for Japan come from the open-source idnumbers library. Report a format issue on GitHub