IMOnummer
IMOnummeren, or IMO number, is a unique seven-digit identifier assigned by the International Maritime Organization to ships. In practice, the term refers to the ship identification number used internationally to identify a vessel throughout its life, regardless of name, flag, or ownership changes. There is also a separate concept called the IMO Company Number, which identifies shipping companies and managers, but this is distinct from the ship’s IMO number.
The IMO number is intended to provide a stable, internationally recognized reference for ships. It is usually
Displaying and usage: The IMO number is typically recorded in official ship documents such as the certificate
Relation to other identifiers: The IMO number is distinct from maritime radio identifiers such as MMSI, which
Access: Public databases and registries, including GISIS and Equasis, allow searching by IMO number to retrieve