What is an International Maritime Organization (IMO) Number?
In 1963 Lloyd’s Register decided to identify all ships recorded in the Lloyd’s Register of Ships by a unique six figure number which was to remain unique to a ship throughout its life, irrespective of conversions and name changes, and never to be re-applied to another ship. This number is now seven digits long and was subsequently adopted by the International Maritime Organization as a means of identifying ships; the IMO number. Please see Infosheet no.45 for further information.