TB ALFI 5412 05

Particulars

MMSI	525901992
Call sign	YDD3443
Flag	Indonesia
Vessel type	Tug
Length overall	28 m
Beam	7 m

From her own AIS broadcasts.

Her MMSI

525901992

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 AWorked out, not reported: only Class A transponders send a status, and she sends one. Class A is the full-strength kind that large cargo and passenger ships must carry.
Status she reports	Under way under engine power
To the bow	5 m (A)
To the stern	23 m (B)
To the port side	3 m (C)
To the starboard side	4 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 05:44 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

KM.SLAMET BERKAH Fishing vessel2.7 nm
TB KIETRANS 26 Tug7.6 nm
TB EBORN Tug9.2 nm
BERAU COAL 61 Tug9.7 nm
MV.ARLYN Cargo ship10 nm
TB PRIMA 11 Tug12 nm
TB BOMAS PROFIT Tug13 nm
MERATUS BORNEO Cargo ship13 nm

Where she is

Position	6.2220° S, 110.3973° E
Speed	3.6 knots
Course	75°
Local time

Voyage

To: Not reported
ETA: 1 Jan 01:01 UTC