MexicoCURP
Also known as: Clave Única de Registro de Población · Unique Population Registry Code · Personal ID Code Number
Specification
Format
AAAANNNNNNAAAAAANN
- Other characters are positional codes or literal separators — see the references below.
- Length
- 18 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.
Ready to check a number?
Validate a Mexico CURP now — it runs in your browser and the number never leaves your device.
Try it in the validatorValidation rules for Mexico come from the open-source idnumbers library. Report a format issue on GitHub