SEIZAN MARU

Particulars

MMSI	431401335
IMO number	9176199
Call sign	JM6511
Flag	Japan
Vessel type	Cargo ship
Length overall	115 m
Beam	18 m
Draught	4.8 m

From her own AIS broadcasts.

Her MMSI

431401335

The first three digits, 431, are the country code of Japan: an MMSI follows a ship's flag, so a new flag brings a new number.

Her IMO number, 9176199, stays with the hull for life.

Her AIS details

AIS is the radio signal a ship sends so that other ships can see her. This is what her signal tells us.

Seen from above, bow to the right, so port is the upper side. The ring is her GPS aerial, where her crew or installer said it sits. Shiptrail draws the aerial's position, not the middle of the ship.

AIS class	Class AWorked out, not reported: only Class A transponders send a status, and she sends one. Class A is the full-strength kind that large cargo and passenger ships must carry.
Status she reports	Under way under engine power
To the bow	89 m (A)
To the stern	26 m (B)
To the port side	14 m (C)
To the starboard side	4 m (D)
Destination as typed	JP UBJ OFFWhat the crew entered; the Voyage card turns it into a port.
Heard from	AISStream
On the map since	31 Oct 2026, 13:17 UTC

A, B, C and D are AIS's own names for these four distances.

From her own AIS broadcasts as the feed delivers them.

Ships near her

MISIKAN Tanker1.2 nm
FUKUHARU MARU Cargo ship1.5 nm
KOSHO MARU Tanker1.6 nm
YACHIYOSHIRANUI MARU Tanker1.9 nm
SHINKOUMARU NO.55 Cargo ship1.9 nm
SEIKEN MARU Cargo ship2.8 nm
NO.8 EIKATSU MARU Cargo ship4.5 nm
ZEN MARU NO.18 Cargo ship4.8 nm

Where she is

Position	33.7087° N, 136.2984° E
Speed	12.4 knots
Course	232°
Local time

Voyage

To: Ube, JapanAbout 252 nm away in a straight line
ETA: 2 Nov 00:30 UTC