ALBIREO

Particulars

MMSI	239054900
Call sign	SY7552
Flag	Greece
Vessel type	Sailing vessel
Length overall	10 m
Beam	3 m

From her own AIS broadcasts.

Her MMSI

239054900

The first three digits, 239, are the country code of Greece: 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	7 m (A)
To the stern	3 m (B)
To the port side	2 m (C)
To the starboard side	1 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 10:44 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

SUNRISE Pleasure craft0.1 nm
BLUESCAPE III Sailing vessel0.2 nm
HAG Pleasure craft0.2 nm
LIGHTNING Pleasure craft0.2 nm
BUBBLY Pleasure craft0.2 nm
CASERTA Pleasure craft0.2 nm
AMAZING GRACE Pleasure craft0.2 nm
MILOS_AT_SEA Pleasure craft0.2 nm

Where she is

Position	37.9367° N, 23.6808° E
Speed	3.7 knots
Course	86°
Local time

Voyage

To: Not reported
ETA: Not reported