MMSI 366678730 · Call sign WCR8242
Not yet on Master's MateYA-TA-HEY is an American vessel. Officially she's MMSI 366678730, call sign WCR8242. It's free to add YA-TA-HEY 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 YA-TA-HEY on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.