SIERRA — Cargo · IMO 8216198

SIERRA has not broadcast an AIS position for 7 days. The most recent broadcast placed it in the North Pacific Ocean, on 2 Nov 2026, 04:21 UTC. It was sailing from VLADIVOSTOK to KORSAKOV ANCH. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.

SIERRA broadcasts MMSI 273358510 and is registered as IMO 8216198, with call sign UAID. 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.

SIERRA is classified as a cargo vessel registered under the RU 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 RU flag list at /flag/ru.

MarineRadar shows the latest AIS broadcast from SIERRA 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.

SIERRA is classed by RUSSIAN MARITIME REGISTER OF SHIPPING, the classification society responsible for inspecting the vessel against safety, structural and operational rules. As a cargo, SIERRA 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. SIERRA has a gross tonnage of 2,618 GT.