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
DONGBANG NO3
MMSI 440151740 · Call sign 120021
Not yet on Master's MateFlag
KORCall sign
120021
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
51
DONGBANG NO3 is a South Korean boat. She's listed under MMSI 440151740, call sign 120021. DONGBANG NO3 is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is DONGBANG NO3 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.
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Last known position · Jun 3, 2026
Position
35.1238° N, 129.0519° 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 DONGBANG NO3 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 DONGBANG NO3 and switch it all on
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About DONGBANG NO3
What kind of vessel is DONGBANG NO3?
DONGBANG NO3 is a vessel flagged to South Korea.
Where was DONGBANG NO3 last seen?
DONGBANG NO3 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is DONGBANG NO3's MMSI?
DONGBANG NO3's MMSI is 440151740. Call sign 120021.
Is DONGBANG NO3 on the Master's Mate Safety Initiative Network?
Not yet. If DONGBANG NO3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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