MMSI 366744950 · Call sign WCX9983
Not yet on Master's MateCIRRUS is an American boat. Her papers read MMSI 366744950, call sign WCX9983. CIRRUS belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put CIRRUS on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.