MMSI 366934010 · Call sign WDB6970
Not yet on Master's MateVIS, a commercial trawler under American registration, measures 17.7 metres on deck. VIS has a 6.4-metre beam and a 3-metre draft. Officially she's MMSI 366934010, call sign WDB6970. VIS can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
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 VIS on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.