MMSI 367753760 · Call sign WDI9947
Not yet on Master's MateGRYPHON is a boat, on the the United States registry. She broadcasts as MMSI 367753760, call sign WDI9947. Give GRYPHON the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
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 GRYPHON on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.