Tug · Japan · last seen 34°N 135°E · Jun 2026 · MMSI 431012644 · Call sign JD4484
Not yet on Master's MateA Japanese tugboat, ISHIN measures 44 metres. ISHIN has 9 metres in the beam and a 3.9 m draft. She's listed under MMSI 431012644, call sign JD4484. ISHIN belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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 ISHIN on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.