BelgiumNational Registration Number
Also known as: National registration number · NN · Belgian identity card · Identiteitskaart · Carte d'identité · Personalausweis
Format
This number has no simple display mask — its structure is defined by validation rules. See the references below for details.
- Length
- 11 characters
- Checksum
- Yes
Check digits are recomputed and verified.
- Embedded data
- Yes
A valid number encodes details such as birth date, gender, or region. The validator extracts them locally in your browser.
24543302887This 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.
Ready to check a number?
Validate a Belgium National Registration Number now — it runs in your browser and the number never leaves your device.
Try it in the validatorValidation rules for Belgium come from the open-source idnumbers library. Report a format issue on GitHub