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
HAEYANGHWANKYUNGJOSA
MMSI 440107530 · Call sign 140
Not yet on Master's MateFlag
KORCall sign
140
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
HAEYANGHWANKYUNGJOSA is a boat flagged in South Korea. Find her under MMSI 440107530, call sign 140. Bring HAEYANGHWANKYUNGJOSA aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card
Is HAEYANGHWANKYUNGJOSA 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
Live AIS position · Jun 10, 2026 02:13 UTC
Position
35.1477° N, 129.1408° E
Speed
0.6 kn
Course
152°
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.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put HAEYANGHWANKYUNGJOSA 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 HAEYANGHWANKYUNGJOSA and switch it all on
Free to join · nothing to install to start · cancel anytime
About HAEYANGHWANKYUNGJOSA
What kind of vessel is HAEYANGHWANKYUNGJOSA?
HAEYANGHWANKYUNGJOSA is a vessel flagged to South Korea.
Where was HAEYANGHWANKYUNGJOSA last seen?
HAEYANGHWANKYUNGJOSA was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is HAEYANGHWANKYUNGJOSA's MMSI?
HAEYANGHWANKYUNGJOSA's MMSI is 440107530. Call sign 140.
Is HAEYANGHWANKYUNGJOSA on the Master's Mate Safety Initiative Network?
Not yet. If HAEYANGHWANKYUNGJOSA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.