This message should be used by a ship to report the number of persons on board (e.g., on request by a competent authority).
IMO Circ. 289
Number of slots (max):
Permitted as from:
|Parameter||No. of bits||Description|
|Message ID||6||Identifier for Message 6; always 6.|
|Repeat Indicator||2||Used by the repeater to indicate how many times a message has been repeated.
0 - 3
0 = default
3 = do not repeat anymore
|Source ID||30||MMSI number of source station.|
|Sequence Number||2||0 - 3; refer to ITU-R M.1371-3, Annex 2, § 5.3.1.|
|Destination ID||30||MMSI number of destination station.|
|Retransmit Flag||1||Retransmit Flag should be set upon retransmission.
0 = no retransmission = default
1 = retransmitted
|Spare||1||Not used. Set to zero.|
|IAI||16||DAC = 001; FI =16 (see ITU-R M.1371-3, Annex 5, § 2.1).|
|Number of Persons||13||Number of persons currently on-board, including crew members.
0 = not available = default
1 - 8,190
8,191 = 8,191 or greater
|Spare||35||Not used. Set to zero.|
|Total||136||Occupies one slot|