Ship number

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Container ship stern view, draft mark (Ahming), IMO no. (Ship number) Mooring deck with winches and rope outlets

A ship number is used to correctly identify a ship .

IMO number

Modern meets old: IMO number on the stern of the four- master Sedov (ex- Magdalene Vinnen II , 1921)

The International Maritime Organization ( International Maritime Organization - IMO) introduced in 1987 in its resolution A.600 (15) the award of an IMO number to improve maritime safety, prevention of pollution and the prevention of fraud one. The IMO number consists of the abbreviation "IMO" and a seven-digit numerical sequence, e.g. B. "IMO 5245434". It is issued once, is not used again and is therefore comparable to the chassis number of a motor vehicle. It accompanies the ship from the start of construction ( keel laying ) to scrapping or at another end of the ship regardless of the change of owner or flag . The allocation and administration of the IMO number is done on behalf of the IMO. Initially, Lloyd's Register of Shipping was responsible for this, on whose internal register number system the IMO number system is based. Today the award is carried out by the information company IHS Fairplay.

The IMO number is assigned to commercial ships with a gross tonnage of at least 100, with the following exceptions:

  • Ships without mechanical propulsion
  • Recreational yachts
  • Special ships, e.g. B. Lightships , SAR ships
  • Barges
  • Hydrofoils, hovercraft
  • Floating docks
  • Warships (ships of the German Navy are listed in the list of ship numbers )
  • Wooden ships
  • Fishing vessels

Since around 2002 there has been a requirement to have the IMO number permanently attached to the outside of the ship and in the engine room . It is usually allocated after the ship's construction contract has been confirmed.

Lloyd's Register

The classification society Lloyd’s Register assigned a unique number for its purposes, which has now been included in the IMO number. Lloyd's Register used to be the point of contact for assigning IMO numbers; today these are assigned by IHS Fairplay .


The Maritime Mobile Service Identity is the phone number of a marine radio station in the GMDSS . If a ship has several GMDSS-capable radios on board, they have the same MMSI number. This also applies to emergency beacons .

ENI - European Number of Identification

Since 2007 there has been the ENI number , the European Number of Identification, Germanized Uniform Identification Number, colloquially "European number", which is mandatory for all inland waterway vessels in Europe.

Military identifiers

Destroyer Mölders with the optical license plate "D 186" and US DRAF as signal flags on the chimneyDelta flag.svg Romeo flag.svg Alpha flag.svg Foxtrot flag.svg

Warships have an identifier next to their name, which is often only very small or on separate signs. This often consists of a letter to classify the ship (speedboat, mine-layer, destroyer, etc.) and an identification number, see ship identification .

Distinctive signal

In Germany, the distinguishing signal is assigned to a seagoing vessel when it is entered in the shipping register . It is also his call sign ( English call sign ) in marine radio and consists of a sequence of four letters , the first two letters of the "DA" range to "DR" originate.

Registration number

A marine register number (SSR). Seagoing ships that are entitled or obliged to fly the German federal flag are entered in the German shipping register . A shipping register number is assigned.

Fishing license

Fishing license

Fishing license plates are mandatory license plates and numbers of the fishing vessels , which designate the home port with letters and the vessel with a registration number. The increasing number of fishing vessels in the North and Baltic Seas led in 1882 to a convention of the neighboring states on a "police regulation of deep sea fishing in the North Sea", which was introduced in Germany after the announcement in the Reichsgesetzblatt in 1884. Example: Nauke HF 17 fishing vessel - According to this, the Nauke comes from Hamburg-Finkenwerder and is the 17th fishing vessel registered there.

See also

Web links

Individual evidence

  1. (German)
  2. Information on the IMO number at the IMO
  3. Entry at IHS Fairplay
  4. Archived copy ( Memento of the original dated December 13, 2010 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot /
  5. Section 16, Paragraph 2 of the Ship Register Ordinance (SchRegO)