JS ONSAN — Tanker · IMO 9657519

JS ONSAN was last reported under way in the East China Sea, on 5 Nov 2026, 22:09 UTC. It was sailing from YANGPU to JEJU with an ETA of 7 Nov 2026, 04:00 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

JS ONSAN broadcasts MMSI 441968000 and is registered as IMO 9657519, with call sign D8BV. 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.

JS ONSAN is classified as a tanker vessel registered under the KR 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 KR flag list at /flag/kr.

MarineRadar shows the latest AIS broadcast from JS ONSAN 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.

JS ONSAN is classed by BUREAU VERITAS, the classification society responsible for inspecting the vessel against safety, structural and operational rules. As a tanker, JS ONSAN 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. JS ONSAN has a gross tonnage of 4,091 GT.