MMSI 367107630 · Call sign WDC9861
Not yet on Master's MateRobyn, an American working fishing vessel, measures 13.6 metres on deck. Her hull carries 4.8 metres in the beam and a draft of 2.5 m. On AIS she shows as MMSI 367107630, call sign WDC9861. It's free to add Robyn 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 Robyn on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.