PRT WARSHIP F331 — Military Ops · MMSI 263023000

PRT WARSHIP F331 has not broadcast an AIS position for 17 days. The most recent broadcast placed it in the North Atlantic Ocean, on 20 Oct 2026, 18:50 UTC. It was sailing from LAS PALMAS to ROTA. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.

PRT WARSHIP F331 broadcasts MMSI 263023000, with call sign CTFK. 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.

PRT WARSHIP F331 is classified as a military ops vessel registered under the PT flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full military ops fleet at /vessel-type/military-special and full PT flag list at /flag/pt.

MarineRadar shows the latest AIS broadcast from PRT WARSHIP F331 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 military ops, PRT WARSHIP F331 sits in the same design class as the other military opss listed in the Similar Vessels section of the vessel page, or in the full military ops directory at /vessel-type/military-special.