MMSI 368028790 · Call sign WDQ6946
Not yet on Master's MateJosephine is an American boat. On AIS she shows as MMSI 368028790, call sign WDQ6946. Sign Josephine up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
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 Josephine on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.