Generate a test Netherlands Burgerservicenummer
A Dutch BSN is a nine-digit citizen service number validated by the "elfproef" (eleven test). These test values are synthetic but pass the eleven test.
Synthetic · not collision-guaranteed Validate a number →
414949961
Synthetic BSN passing the eleven test. Not a real issued number.
Format specification
| Identifier | Burgerservicenummer (BSN) |
|---|---|
| Country | 🇳🇱 Netherlands |
| Format | 000000000 |
| Length | 9 characters |
| Checksum | Eleven test (MOD 11) |
| Example | 251603994 |
| Safe strategy | Synthetic |
| Data quality | Verified against sources |
Validation regex
Matches the canonical value — strip separators and uppercase first: value.replace(/[^A-Za-z0-9]/g, '').toUpperCase()
^\d{9}$ References
Common questions
Will these pass my validation?
Yes — they are well-formed Burgerservicenummer values (000000000) and pass standard format checks, including the Eleven test (MOD 11) 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.