RIO GRANDE — Dredger · MMSI 244260857

RIO GRANDE was last reported moored in the North Sea, within the English Channel / North Sea corridor, on 5 Nov 2026, 22:38 UTC. It was sailing from THOLEN to ANTWERP with an ETA of 15 Oct 2026, 08:43 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

RIO GRANDE broadcasts MMSI 244260857, with call sign PF9947. 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.

RIO GRANDE is classified as a dredger vessel registered under the NL flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full dredger fleet at /vessel-type/military-special and full NL flag list at /flag/nl.

MarineRadar shows the latest AIS broadcast from RIO GRANDE 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.

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.

As a dredger, RIO GRANDE sits in the same design class as the other dredgers listed in the Similar Vessels section of the vessel page, or in the full dredger directory at /vessel-type/military-special.