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

Sungwoo Jeju

MMSI 440925000

Not yet on Master's Mate

Flag

KOR

Length

149 m

IMO

9217606

AIS reports

Sungwoo Jeju is a craft registered in South Korea, spanning 149 metres. Find her under MMSI 440925000, IMO 9217606. Sungwoo Jeju belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

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Wherever Sungwoo Jeju roams, 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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Joining the Safety Initiative Network doesn't just put Sungwoo Jeju 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.

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About Sungwoo Jeju

What kind of vessel is Sungwoo Jeju?

Sungwoo Jeju is a vessel flagged to South Korea.

What is Sungwoo Jeju's MMSI?

Sungwoo Jeju's MMSI is 440925000. IMO 9217606.

How big is Sungwoo Jeju?

Sungwoo Jeju is about 149 m long.

Is Sungwoo Jeju on the Master's Mate Safety Initiative Network?

Not yet. If Sungwoo Jeju is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).