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MEO CLASS 1 · ORAL QUESTION 29

Q32a – MMSI (Maritime Mobile Service Identity)

Answer

A- It is a unique 9 digit number assigned to –

a.Maritime radio stations on vessel

b.Fixed off-shore platforms
c.Coast stations
d.Maritime communciatn devices
-It acts like maritime ‘phone number’ that enables vessels & maritime entities to be identified & contacted digitaly over radio channels, especially for safety, communication, navig atn & tracking purposes.

- It consists of 3 Maritime Identificatn digits (MID) indicating the country issuing the no., followed by 6 digits unique to the vessel or staten.

- MMSI typically changes if the flag of the ship changes.

- Purpose – Facilitates automated distress alerts, position reporting, vessel tracking via AIS & direct digital communication b/w vessels & costal statns.