MMSI 367088430 · Call sign WDP6197
Not yet on Master's MateGracie K, a ferry vessel flying the flag of the United States, measures 12.6 metres on deck. Her hull carries a 4.3-metre beam and a draft of 1.9 m. On AIS she shows as MMSI 367088430, call sign WDP6197. For a boat that carries people, Gracie K can lean on the Master's Mate Safety Initiative Network — free distress alerting and a fleet that's paying attention.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put Gracie K on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.