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
No. 620 Dong Won
MMSI 440952000
Not yet on Master's MateFlag
KORLength
56 m
IMO
8821498
AIS reports
2
No. 620 Dong Won is a craft flagged in South Korea, 56 metres overall. On AIS she shows as MMSI 440952000, IMO 8821498. It's free to add No. 620 Dong Won to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card
Is No. 620 Dong Won 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
Wherever No. 620 Dong Won roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put No. 620 Dong Won 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 No. 620 Dong Won and switch it all on
Free to join · nothing to install to start · cancel anytime
About No. 620 Dong Won
What kind of vessel is No. 620 Dong Won?
No. 620 Dong Won is a vessel flagged to South Korea.
What is No. 620 Dong Won's MMSI?
No. 620 Dong Won's MMSI is 440952000. IMO 8821498.
How big is No. 620 Dong Won?
No. 620 Dong Won is about 56 m long.
Is No. 620 Dong Won on the Master's Mate Safety Initiative Network?
Not yet. If No. 620 Dong Won is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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