STOLT EFFICIENCY — Tanker · IMO 9102112

STOLT EFFICIENCY has not broadcast an AIS position for 3 days. The most recent broadcast placed it in the North Pacific Ocean, on 4 Nov 2026, 23:28 UTC. It was sailing from HOUSTON to YOKOHAMA. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.

STOLT EFFICIENCY broadcasts MMSI 319488000 and is registered as IMO 9102112, with call sign ZCSP5. 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.

STOLT EFFICIENCY is classified as a tanker vessel registered under the KY flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full tanker fleet at /vessel-type/tanker and full KY flag list at /flag/ky.

MarineRadar shows the latest AIS broadcast from STOLT EFFICIENCY 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.

STOLT EFFICIENCY is classed by DET NORSKE VERITAS, the classification society responsible for inspecting the vessel against safety, structural and operational rules. As a tanker, STOLT EFFICIENCY sits in the same design class as the other tankers listed in the Similar Vessels section of the vessel page, or in the full tanker directory at /vessel-type/tanker. STOLT EFFICIENCY has a gross tonnage of 24,625 GT.