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.
Commercial Fishing Vessel
Haeju
MMSI 366907290 · Call sign WDB5227
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
20.1 m
Beam
6.7 m
Draft
2.3 m
Call sign
WDB5227
IMO
8442008
Official No.
910988
AIS reports
1
On the American registry, Haeju is a 20.1-metre fishing vessel. Haeju has a 6.7 m beam and a 2.3-metre draft. On AIS she shows as MMSI 366907290, call sign WDB5227, IMO 8442008. Out where help is far away, Haeju has the free Master's Mate Safety Initiative Network — and a fleet that answers.
Free forever · No credit card · for working captains
Know where the fleet is. Get Haeju home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Haeju 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 · for working captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Haeju on the map. It hands you the full bridge:
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.
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Haeju and switch it all on
Free to join · nothing to install to start · cancel anytime
About Haeju
What kind of vessel is Haeju?
Haeju is a Commercial Fishing Vessel flagged to United States of America.
What is Haeju's MMSI?
Haeju's MMSI is 366907290. Call sign WDB5227. IMO 8442008.
How big is Haeju?
Haeju is about 20.1 m long, 6.7 m on the beam, drawing 2.3 m.
Is Haeju on the Master's Mate Safety Initiative Network?
Not yet. If Haeju is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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