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Antigua & Barbuda flag

RIVER MAS — Cargo · IMO 9228617

AGMoored
World map showing the last known position of RIVER MAS at 1° 5.763' N, 103° 54.503' E
NSEW
Current PositionNo recent signal

RIVER MAS has not broadcast an AIS position for 98 days. Its most recent report placed it in the South China Sea, at 1.0961° N, 103.9084° E, on 2 Jun 2026, 14:42 UTC. It was sailing from BATU AMPAR ANCH to BATU AMPAR.

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Updated 98 days ago using terrestrial data
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Moored
Current Navigational Status
0.0 kn
Speed
141.2°
/ 269°
Course / Heading
5.8 m
Static Draught
6.6 m
Current Draught

Voyage Tracker

ATD
13:38 UTCMar 13, 2026
ETA
09:36 UTCMay 9, 2026
RIVER MAS

RIVER MAS

Identity

Cargo
Type
Antigua & Barbuda flagAG
Flag
9228617
IMO Number
304251000
MMSI
V2ON9
Call Sign

Specifications

120 m × 20 m
Length × Breadth
2001-01-01
Year Built
7,481 t
Deadweight
7,252 t
Gross Tonnage
5,400 kW
Engine Power
ENVC - VIANA DO CASTELO, PORTUGAL
Builder
GERMANISCHER LLOYD
Class Society
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Dive into the fleet, port, and flag state that RIVER MAS is part of.

Flag State
All AG-flagged vessels
Browse every ship currently registered under the AG flag, with live AIS positions.
Vessel Type
Browse all Cargos
See the global fleet of cargos tracked on MarineRadar with live AIS data.
Departure Port
Port of BATU AMPAR ANCH
Port traffic, arrivals and live vessel positions for BATU AMPAR ANCH (EGEDK).
Destination Port
Port of BATU AMPAR
Arrivals, berth specifications, and live vessel traffic for BATU AMPAR (IDBUR).

About RIVER MAS

Identity · Ownership · Class · Route

RIVER MAS — Cargo

Built in 2001, with a gross tonnage of 7,252 GT, and a dead weight of 7,481 tonnes, RIVER MAS is a cargo registered under the Antigua and Barbuda flag. The vessel is owned by JUNGERHANS REEDEREI - HAREN EMS, GERMANY, built by ENVC - VIANA DO CASTELO, PORTUGAL.

RIVER MAS route and voyage history

RIVER MAS is currently on a voyage from BATU AMPAR ANCH to BATU AMPAR with an estimated arrival on 2026-05-09T09:36:00Z. The live route and current course of RIVER MAS are shown on the bridge map above, updated whenever the vessel is in range of a coastal AIS receiver or a satellite pass.

Vessel class and identifiers

RIVER MAS is classed by GERMANISCHER LLOYD, which inspects the vessel against its safety and structural rules. Vessels in the same class as RIVER MAS can be seen in the Similar Vessels section above or in the full cargo fleet at /vessel-type/cargo.

Frequently Asked Questions

Where is RIVER MAS right now?+
RIVER MAS has not broadcast an AIS position for 98 days. The most recent broadcast placed it in the South China Sea, on 2 Jun 2026, 14:42 UTC. It was sailing from BATU AMPAR ANCH to BATU AMPAR. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.
What are the identifiers for RIVER MAS?+
RIVER MAS broadcasts MMSI 304251000 and is registered as IMO 9228617, with call sign V2ON9. The MMSI is the radio identifier used by AIS; the IMO number stays with the ship for life and does not change with re-flagging or sale.
What type of ship is RIVER MAS?+
RIVER MAS is classified as a cargo vessel registered under the AG flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full cargo fleet at /vessel-type/cargo and full AG flag list at /flag/ag.
How can I see the live position of RIVER MAS?+
MarineRadar shows the latest AIS broadcast from RIVER MAS above, with current position, course, speed, and navigation status. Tap "View on map" to centre the live tracker on the vessel and watch its movement update in real time. The same data is available offline-friendly in the iOS and Android apps.
How often is RIVER MAS's position updated?+
AIS transponders broadcast position every 2 seconds when underway at high speed and up to every 3 minutes at anchor. The position you see refreshes whenever the ship is in range of a coastal AIS receiver or a satellite pass — typically seconds in coastal waters and minutes offshore.
What class is RIVER MAS?+
RIVER MAS is classed by GERMANISCHER LLOYD, the classification society responsible for inspecting the vessel against safety, structural and operational rules. As a cargo, RIVER MAS sits in the same design class as the other cargos listed in the Similar Vessels section of the vessel page, or in the full cargo directory at /vessel-type/cargo. RIVER MAS has a gross tonnage of 7,252 GT.

RIVER MAS — Key Facts

MMSI
304251000
IMO number
9228617
Call sign
V2ON9
Vessel type
Cargo
Flag state
AG
Navigation status
Moored
Current speed
0.0 knots
Course over ground
141.2°
Heading
269°
Last known position
1.0961°, 103.9084°
Destination
BATU AMPAR
ETA
2026-05-09T09:36:00Z
Departure port
BATU AMPAR ANCH
Actual time of departure
2026-03-13T13:38:00Z
Current draught
6.6 m
Maximum static draught
5.8 m
Year built
2001-01-01
Gross tonnage
7252
Dead weight
7481 t
AIS last updated
2026-06-02T14:42:13Z