Maritime identification digits (MID) which identify the country licensing/ controlling the station.
- Ship stations :-
MID (for India or Issuing country) 419300021, where 419 indicate country code of INDIA .
Some countries have more than one MID (Maritime identification digit).
We usually refer ALRS – Volume (5).
- Group stations :-
One leading zero 041913000 Indicate group of ships.
- Coast Stations :-
Two leading zeros 004190018 Indicates coast Stations MMSI No.