Vnummers

Vnummers are a class of identifiers used in Dutch-language contexts to label records, individuals, organizations, or assets. They typically begin with the prefix V and are followed by digits, though the exact format varies by issuing authority. The purpose is to provide a compact, unique reference that can be used across administrative systems.

Origin and scope: There is no single, universal standard for Vnummers. Different government agencies, companies, and institutions generate their own V-number sequences to suit their internal processes. The V prefix is chosen by the issuer and may reflect a shorthand for a term in Dutch or be a simple mnemonic marker.

Format and examples: Formats vary by domain. A common pattern is a leading V followed by a string of digits, for example V12345, sometimes with separators like V-12-345 or including a check digit. The exact length and structure are determined by the issuing body and the intended use of the number.

Usage and domains: Vnummers serve as unique keys for identification, data retrieval, and cross-system linking. They appear in areas such as client or resident registries, asset or vehicle records, library systems, and healthcare or welfare administration. In each domain, Vnummers support efficient record management and traceability.

Privacy and interoperability: Because Vnummers can identify persons or assets, access should be restricted and handled in accordance with applicable data protection rules. Interoperability depends on explicit mappings between systems; without such mappings, Vnummers are not automatically interchangeable. See also concepts like identification numbers, unique identifiers, and data governance.