MMSI 257157640 · Call sign LK7821
Not yet on Master's MateJM SENIOR is a Norwegian boat — 11 metres overall. Below, she has 5 metres in the beam. On AIS she appears as MMSI 257157640, call sign LK7821. JM SENIOR is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
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 JM SENIOR on the map. It hands you the full bridge:
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