POLARREV

Particulars

MMSI	205425300
Call sign	OS4253
Flag	Belgium
Vessel type	Pleasure craft
Length overall	14 m
Beam	4 m

From her own AIS broadcasts.

Her MMSI

205425300

The first three digits, 205, are the country code of Belgium: 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	6 m (A)
To the stern	8 m (B)
To the port side	1 m (C)
To the starboard side	3 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 14:03 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

SOLENT Pleasure craft0.1 nm
JUGE GRANEL Pleasure craft0.1 nm
PETITFOLIE Sailing vessel0.1 nm
TEGENWIND Pleasure craft0.2 nm
KAMINA Pleasure craft0.2 nm
ZEESCHELDE Cargo ship0.2 nm
VEREMANS0.2 nm
ZEEASTER Pilot vessel0.2 nm

Where she is

Position	51.2278° N, 4.3923° E
Speed	Stopped, 0.0 knots
Local time

Voyage

From: Antwerpen, BelgiumStopped here now; before this Breskens, Netherlands
To: Not reported
ETA: Not reported