CALLISTO

Particulars

MMSI	235098733
Call sign	MZEY9
Flag	United Kingdom
Vessel type	Pleasure craft
Length overall	10 m
Beam	3 m

From her own AIS broadcasts.

Her MMSI

235098733

The first three digits, 235, are the country code of the United Kingdom: 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	10 m (A)
To the stern	0 m (B)
To the port side	3 m (C)
To the starboard side	0 m (D)
Heard from	AISStream
On the map since	31 Oct 2026, 12:02 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

BALOO OF LYMINGTON Pleasure craft0.4 nm
DIABLO Pleasure craft0.5 nm
QUICKSILVER Sailing vessel0.6 nm
ALEXANDRA Sailing vessel0.6 nm
MOSI OYA TUNYA Pleasure craft0.7 nm
SCRIBBLE Sailing vessel0.8 nm
NEMESIS Sailing vessel0.8 nm
ESPRIT Sailing vessel0.8 nm

Where she is

Position	50.7180° N, 1.5106° W
Speed	4.7 knots
Course	347°
Local time

Voyage

To: Not reported
ETA: Not reported