CHAN NAM 21: dredger in port at Van Phong

Particulars

MMSI	574101813
Flag	Vietnam
Vessel type	Dredger
Length overall	40 m
Beam	9 m

From her own AIS broadcasts.

Her MMSI

574101813

The first three digits, 574, are the country code of Vietnam: 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	25 m (A)
To the stern	15 m (B)
To the port side	4 m (C)
To the starboard side	5 m (D)
On the map since	15 Nov 2026, 06:11 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.

Where she is

Position	20.8114° N, 106.9003° E
Speed	Stopped, 0.0 knots
Local time

Voyage

From: Van Phong, VietnamStopped here now
To: Not reported
ETA: Not reported

Ships near her

Ship	Kind	Length	Distance
🇻🇳TRUONG THANH 16	Cargo ship	128 m	0.1 nm
🇻🇳CATBA HORIZON 01	Passenger ship	15 m	0.2 nm
🇲🇳PROSPER	Cargo ship	119 m	0.3 nm
🇻🇳OPEC CAPRI	Tanker	96 m	0.4 nm
🇻🇳GREAT LADY	Tanker	118 m	0.4 nm
🇻🇳LONG HAI 35	Dredger		0.5 nm
🇻🇳MY DUNG 18	Dredger	105 m	0.5 nm
🇻🇳ST428		25 m	0.5 nm

CHAN NAM 21