MMSI 368029240 · Call sign WDJ9772
Not yet on Master's MateOn the American registry, I'm Where? is a vessel. Look for MMSI 368029240, call sign WDJ9772. It's free to add I'm Where? to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
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 I'm Where? on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.