KAZUMARU NO51

Particulars

MMSI	431028024
Call sign	JD5515
Flag	Japan
Vessel type	Fishing vessel
Length overall	45 m
Beam	8 m

From her own AIS broadcasts.

Her MMSI

431028024

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.

She broadcasts no IMO number. Only larger seagoing ships are required to have one.

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 BWorked out, not reported: only Class A transponders send a status, and she sends none. Class B is the lighter kind on yachts, fishing boats and other small craft, which reports less often.
To the bow	40 m (A)
To the stern	5 m (B)
To the port side	4 m (C)
To the starboard side	4 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 12:57 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

DAIKOUN MARU Cargo ship0.2 nm
TENMA Cargo ship1.0 nm
HISHOU MARU Cargo ship1.5 nm
IZUMIMARU NO28 Tanker1.5 nm
TOKU MARU NO.31 Cargo ship2.3 nm
DAIJINMARU NO.8 Cargo ship2.4 nm
SHUHO Tanker2.6 nm
TOEI MARU Tanker2.9 nm

Where she is

Position	34.1305° N, 133.1127° E
Speed	11.1 knots
Course	65°
Local time

Voyage

From: Imabari, JapanDeparted 18 Oct 2026 (inferred)
To: Not reported
ETA: Not reported