Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Vessel
1 DONG JIN
South Korea · last seen 35°N 129°E · Jun 2026 · MMSI 440121380
Not yet on Master's MateFlag
KORFirst reported
Jun 2026
Last reported
Jun 2026
AIS reports
12
1 DONG JIN is a vessel wearing South Korean colours. She's listed under MMSI 440121380. Bring 1 DONG JIN aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
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Is 1 DONG JIN your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 2, 2026
Position
35.0525° N, 129.2095° E
Crossing the Sea of Japan? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put 1 DONG JIN on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim 1 DONG JIN and switch it all on
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About 1 DONG JIN
What kind of vessel is 1 DONG JIN?
1 DONG JIN is a vessel flagged to South Korea.
Where was 1 DONG JIN last seen?
1 DONG JIN was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is 1 DONG JIN's MMSI?
1 DONG JIN's MMSI is 440121380.
Is 1 DONG JIN on the Master's Mate Safety Initiative Network?
Not yet. If 1 DONG JIN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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