MARGARET BROOKE — Military Ops · IMO 4702515

MARGARET BROOKE has not broadcast an AIS position for 28 days. The most recent broadcast placed it in the North Atlantic Ocean, on 10 Oct 2026, 00:03 UTC. It was sailing from HALIFAX to HALIFAX. Vessels stop appearing on terrestrial AIS when they move beyond receiver range, so a gap does not necessarily mean the vessel is inactive.

MARGARET BROOKE broadcasts MMSI 316014540 and is registered as IMO 4702515, with call sign CGMB. 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.

MARGARET BROOKE is classified as a military ops vessel registered under the CA flag. The vessel-type classification is derived from the AIS Type field broadcast by the ship's transponder; full military ops fleet at /vessel-type/military-special and full CA flag list at /flag/ca.

MarineRadar shows the latest AIS broadcast from MARGARET BROOKE 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 military ops, MARGARET BROOKE sits in the same design class as the other military opss listed in the Similar Vessels section of the vessel page, or in the full military ops directory at /vessel-type/military-special.