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.
Fishing
502YEONCHANG
MMSI 440030360 · Call sign 350YC
Not yet on Master's MateType
Fishing
Flag
KORLength
54 m
Beam
9 m
Draft
4.2 m
Call sign
350YC
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
502YEONCHANG is a South Korean commercial fishing boat, 54 metres on deck. Her hull carries a 9 m beam and a draft measuring 4.2 metres. On AIS she appears as MMSI 440030360, call sign 350YC. It's free to add 502YEONCHANG 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 · for working captains
Know where the fleet is. Get 502YEONCHANG home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
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Last known position · Jun 4, 2026
Position
35.0863° N, 129.0262° E
Fishing the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put 502YEONCHANG 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 502YEONCHANG and switch it all on
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About 502YEONCHANG
What kind of vessel is 502YEONCHANG?
502YEONCHANG is a Fishing flagged to South Korea.
Where was 502YEONCHANG last seen?
502YEONCHANG was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is 502YEONCHANG's MMSI?
502YEONCHANG's MMSI is 440030360. Call sign 350YC.
How big is 502YEONCHANG?
502YEONCHANG is about 54 m long, 9 m on the beam, drawing 4.2 m.
Is 502YEONCHANG on the Master's Mate Safety Initiative Network?
Not yet. If 502YEONCHANG is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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