TAIWA MARU

Particulars

MMSI	431021168
Call sign	JD5241
Flag	Japan
Vessel type	Tanker
Length overall	53 m
Beam	10 m

From her own AIS broadcasts.

Her MMSI

431021168

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	39 m (A)
To the stern	14 m (B)
To the port side	6 m (C)
To the starboard side	4 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 10:39 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

ZUIRYU MARU Cargo ship2.1 nm
CHIKAWAMARU Cargo ship2.6 nm
SHIMANAMI Cargo ship2.9 nm
ZEN MARU NO.18 Cargo ship3.2 nm
YUUSEIMARU NO3 Cargo ship3.3 nm
NICKEL KOTOBUKI Tanker4.1 nm
ZENITH WIN Cargo ship4.3 nm
NURI HANA Tanker4.5 nm

Where she is

Position	33.6007° N, 136.0041° E
Speed	10.6 knots
Course	214°
Local time

Voyage

To: Not reported
ETA: Not reported