AIKAI

Particulars

MMSI	431284000
Flag	Japan
Vessel type	Pleasure craft
Length overall	23 m
Beam	6 m

From her own AIS broadcasts.

Her MMSI

431284000

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	17 m (A)
To the stern	6 m (B)
To the port side	2 m (C)
To the starboard side	4 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 08:49 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

KINJUMARU Cargo ship0.9 nm
HOKENMARU NO.3 Tanker1.2 nm
NAIKAI MARU NO.3 Tanker2.9 nm
SHINYOUMARU Cargo ship3.3 nm
SUMISE MARU NO.32 Cargo ship3.5 nm
KOUWA Cargo ship3.8 nm
LONG SHENG 16 Cargo ship3.8 nm
KAKUWAMARU Tanker3.9 nm

Where she is

Position	34.1555° N, 135.1767° E
Speed	Stopped, 0.1 knots
Local time

Voyage

From: Wakayama, JapanStopped here now
To: Not reported
ETA: Not reported