ALTHEA — Pleasure Craft · MMSI 538072156

ALTHEA is currently in the North Atlantic Ocean, within the US East Coast shipping lane. It is sailing from AVENTURA to CLASS B with an ETA of 18 May 2026, 13:01 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

ALTHEA broadcasts MMSI 538072156. 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.

ALTHEA is classified as a pleasure craft vessel registered under the MH flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full pleasure craft fleet at /vessel-type/yacht and full MH flag list at /flag/mh.

MarineRadar shows the latest AIS broadcast from ALTHEA 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 pleasure craft, ALTHEA sits in the same design class as the other pleasure crafts listed in the Similar Vessels section of the vessel page, or in the full pleasure craft directory at /vessel-type/yacht.