VietnamCitizen Identity Card Number
Also known as: National ID Number · Thẻ căn cước công dân
Specification
Format
Variable (9 or 12 digits)
- Other characters are positional codes or literal separators — see the references below.
- Length
- 9–12 characters
- Checksum
- No
Only the format is checked — this number has no check digit.
- Embedded data
- Yes
A valid number encodes details such as birth date, gender, or region. The validator extracts them locally in your browser.
Sample test value
221461056This 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 Vietnam Citizen Identity Card Number now — it runs in your browser and the number never leaves your device.
Try it in the validatorValidation rules for Vietnam come from the open-source idnumbers library. Report a format issue on GitHub