MITO

Particulars

MMSI	431015771
Call sign	JD4889
Flag	Japan
Vessel type	Cargo ship
Length overall	62 m
Beam	10 m

From her own AIS broadcasts.

Her MMSI

431015771

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	53 m (A)
To the stern	9 m (B)
To the port side	2 m (C)
To the starboard side	8 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 17:38 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

TOSHIN MARU Cargo ship1.1 nm
OUKA1.8 nm
YAMASAKURA3.9 nm
SHOZUI MARU Tanker3.9 nm
NO.11 ASAHIMARU Cargo ship4.0 nm
TONE MARU NO.8 Cargo ship4.5 nm
SENTAIMARU Tanker4.6 nm
MEIJI MARU NO.2 Cargo ship5.2 nm

Where she is

Position	33.7841° N, 136.3204° E
Speed	10.8 knots
Course	48°
Local time

Voyage

From: Ariake, Tokyo, JapanDeparted 17 Oct 2026 (inferred)
To: Not reported
ETA: Not reported