MMSI 367109880 · Call sign WDD2017
Not yet on Master's MateWM Coulson III is an American vessel. On AIS she appears as MMSI 367109880, call sign WDD2017. Claim WM Coulson III free on the Master's Mate Safety Initiative Network and let nearby cruisers have 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 WM Coulson III on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.