MMSI 367481540 · Call sign WDF7145
Not yet on Master's MateAn American work boat, KAREN KOBY measures 33 metres. Below, she has 10 metres in the beam and a draft measuring 3.7 metres. On AIS she appears as MMSI 367481540, call sign WDF7145, IMO 8651324. KAREN KOBY 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 KAREN KOBY on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.