MMSI 368335430 · Call sign WDP2341
Not yet on Master's MateISAAC K, an American tug, measures 26 metres on deck. Below, she has a 10 m beam and a draft measuring 3 metres. On AIS she shows as MMSI 368335430, call sign WDP2341. ISAAC K is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put ISAAC K on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.