IALA

Number of persons on board

Introduction/Additional information:

This message should be used by a ship to report the number of persons on board (e.g., on request by a competent authority).

Registrant:
IMO Circ. 289
Message number:
6
DAC:
1
FI:
16
State:
in force
Number of slots (max):
1
Permitted as from:
01/06/2010
Details:
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