MMSI 366639130 · Call sign WCM5263
Not yet on Master's MateSEEKER II is an American 23.5-metre offshore fishing boat. SEEKER II has a beam of 6.8 m and a 3.4-metre draft. She broadcasts as MMSI 366639130, call sign WCM5263, IMO 7743027. It's free to add SEEKER II to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put SEEKER II on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.