TB.JOHAN JAYA 166

Particulars

MMSI	525401873
Call sign	YDC4519
Flag	Indonesia
Vessel type	Tug
Length overall	25 m
Beam	4 m

From her own AIS broadcasts.

Her MMSI

525401873

The first three digits, 525, are the country code of Indonesia: 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	5 m (A)
To the stern	20 m (B)
To the port side	4 m (C)
To the starboard side	0 m (D)
Heard from	AISStream
On the map since	30 Oct 2026, 20:42 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

TB BOJOMA 29150.2 nm
TB MARINA 1607 Tug0.3 nm
LEO POWER 2223 Tug0.4 nm
JOHAN JAYA 118 Tug0.4 nm
MARINA 2001 Tug0.4 nm
MAJU DAYA 81 Tug1.1 nm
KMP.MADANI Passenger ship3.9 nm
TB. AMARYLLIS Tug3.9 nm

Where she is

Position	2.3684° S, 104.7354° E
Speed	Stopped, 0.0 knots
Local time

Voyage

From: Muntok, Banka, IndonesiaDeparted 28 Oct 2026 (inferred)
To: Not reported
ETA: Not reported