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Maritime Facts and Figures: IMO

Information sources and statistics relating to maritime and shipping



The IMO ship identification number scheme was introduced in 1987 as a measure aimed at enhancing "maritime safety, and pollution prevention and to facilitate the prevention of maritime fraud". It aimed at assigning a permanent number to each ship for identification purposes. See More

  • The IMO number is made up of the three letters "IMO" in front of seven digits (e.g. IMO8712345) 
  • IMO does not assign IMO Numbers.  To obtain an IMO number for both new and existing ships and to make enquiries, see:
  • Assigned identification numbers are available in the "Ship and Company Particulars" module of IMO's Global Integrated Shipping Information System (GISIS).  (Registration required)