diarienummer

A diarienummer is a unique identifier assigned to a specific administrative file or dossier within government agencies, municipalities, and other organizations. The diarienummer is used to distinguish one matter from another and to link all related documents, letters, and communications to the same case.

It is used by citizens and officials to reference the case in correspondence, inquiries, and in online portals. When a matter is opened, the diarienummer is recorded in the file and typically appears on letters, emails, and portal messages. It allows staff to retrieve the correct records and to track the status of applications, permits, complaints, or decisions.

Formats vary by organization; common patterns include a year followed by a sequential number (for example, 2024-01234 or 2024/01234), but some agencies use other alphanumeric combinations. The diarienummer is generally not a public identifier for the person but relates to their administrative matter.

Citizens should keep their diarienummer handy when contacting authorities, as it speeds up processing and ensures the right file is consulted. If lost, it can usually be retrieved via the agency's portal or by providing identifying details to request a new reference.