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Talk:Maritime Mobile Service Identity

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This is an old revision of this page, as edited by Severndroog (talk | contribs) at 13:15, 8 June 2011 (MMSI numbers recycled, not unique.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Can someone please define the following for those of us not familiar with the system:

  • Ship station identities,
  • Group ship station identities,
  • Coast station identities,
  • Group coast station identities.


A 'ship station' is a ship.

also; Need to add note that due to the shortage of number MMSI numbers are recycled, therefore whilst they are unique at any given moment, they are not unique over time to a given ship or other station.

A new (recycled) MMSI number will be issued to a ship when the ownership changes.

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