MMSI 261005277 · Call sign SPA6188
Not yet on Master's MateTONLEI is a Polish 13-metre cruising yacht. TONLEI has a 4 m beam. On AIS she appears as MMSI 261005277, call sign SPA6188. TONLEI can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
GPS-precise anchor-drag alarms, ETA-calibrated weather routing, worldwide charts, and cruisers watching each other’s backs.
Set her anchor watch — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put TONLEI on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.