IIN generator (Kazakhstan)
A Kazakhstani IIN is twelve digits — date of birth, a century/sex digit, a serial, and a two-pass MOD-11 check digit. These test values are synthetic but checksum-valid.
Synthetic · not collision-guaranteed Validate a number →
620115696830
Synthetic IIN with a valid check digit. Not a real issued number.
Format specification
| Identifier | Individual Identification Number (ИИН / ЖСН) |
|---|---|
| Country | 🇰🇿 Kazakhstan |
| Format | 000000000000 |
| Length | 12 characters |
| Checksum | MOD 11 (two-pass) |
| Example | 710427137849 |
| Safe strategy | Synthetic |
| Data quality | Verified against sources |
Individual Identification Number: what each part means
| 000000 | Date of birth as YYMMDD. |
|---|---|
| 0 | Century and sex in one digit: 1/2 = born 1800s (male/female), 3/4 = 1900s, 5/6 = 2000s. |
| 0000 | Four-digit serial number. |
| 0 | Check digit: weights 1–11 mod 11; if that yields 10 a second weight set is used, and numbers that still yield 10 are never issued. |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^\d{12}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Individual Identification Number values (000000000000) and pass standard format checks, including the MOD 11 (two-pass) checksum.
Could one belong to a real person?
These are synthetic values. They are format-valid but not drawn from a guaranteed reserved range, so use them only for testing.
Can I generate many at once?
Increase the count, or use the free API and CSV/JSON export for large datasets.
For software testing only. These numbers are synthetic and must never be used
for real-world identification, applications, or to impersonate anyone.