CONSTITUTION — Tanker · IMO 9706499

CONSTITUTION was last reported under way in the Caribbean Sea, on 6 Nov 2026, 09:18 UTC. It was sailing from CAI MEP to HOUSTON with an ETA of 12 Nov 2026, 12:00 UTC. Its exact coordinates, speed and ETA are shown at the top of this page and refresh from the latest AIS broadcast.

CONSTITUTION broadcasts MMSI 311000379 and is registered as IMO 9706499, with call sign C6BV8. 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.

CONSTITUTION is classified as a tanker vessel registered under the BS 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 BS flag list at /flag/bs.

MarineRadar shows the latest AIS broadcast from CONSTITUTION 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 tanker, CONSTITUTION 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. CONSTITUTION has a gross tonnage of 47,756 GT.