The Netherlands Chamber of Commerce (KvK) gives every registered entity a unique 8-digit KvK number (e.g., 12345678). This applies to a BV, NV, sole proprietorship, or foundation.
The number is purely numeric and does not encode location, entity type, or date. Each branch (vestiging) also gets its own 12-digit establishment number (vestigingsnummer).
For More: Click on Netherlands Company Registration