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
306 SEO JIN
MMSI 440306190 · Call sign 606
Not yet on Master's MateType
Fishing
Flag
KORCall sign
606
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
50
On the South Korean registry, 306 SEO JIN is a commercial fishing boat. On AIS she shows as MMSI 440306190, call sign 606. Bring 306 SEO JIN aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working captains
Know where the fleet is. Get 306 SEO JIN 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
Live AIS position · Jun 9, 2026 04:07 UTC
Position
35.1918° N, 129.5709° E
Speed
0.8 kn
Course
66°
Fishing the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put 306 SEO JIN 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 306 SEO JIN and switch it all on
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About 306 SEO JIN
What kind of vessel is 306 SEO JIN?
306 SEO JIN is a Fishing flagged to South Korea.
Where was 306 SEO JIN last seen?
306 SEO JIN was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is 306 SEO JIN's MMSI?
306 SEO JIN's MMSI is 440306190. Call sign 606.
Is 306 SEO JIN on the Master's Mate Safety Initiative Network?
Not yet. If 306 SEO JIN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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