REEF EXPLORER — Passenger · MMSI 503488900

REEF EXPLORER was last reported in the Coral Sea. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

REEF EXPLORER broadcasts MMSI 503488900. 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.

REEF EXPLORER is classified as a passenger vessel registered under the AU flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full passenger fleet at /vessel-type/passenger and full AU flag list at /flag/au.

MarineRadar shows the latest AIS broadcast from REEF EXPLORER 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 passenger, REEF EXPLORER sits in the same design class as the other passengers listed in the Similar Vessels section of the vessel page, or in the full passenger directory at /vessel-type/passenger.