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Cargo
KOUYOU MARU NO.8
MMSI 431006474 · Call sign JD3868
Not yet on Master's MateType
Cargo
Flag
JPNLength
62 m
Beam
9 m
Draft
3.8 m
Call sign
JD3868
IMO
9765299
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
2
A Japanese cargo vessel, KOUYOU MARU NO.8 measures 62 metres. KOUYOU MARU NO.8 has a beam measuring 9 metres and a 3.8-metre draft. She's listed under MMSI 431006474, call sign JD3868, IMO 9765299. Give KOUYOU MARU NO.8 the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for commercial operators
Eyes on KOUYOU MARU NO.8, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Last known position · Jun 4, 2026
Position
35.4897° N, 139.7137° E
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put KOUYOU MARU NO.8 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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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 KOUYOU MARU NO.8 and switch it all on
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About KOUYOU MARU NO.8
What kind of vessel is KOUYOU MARU NO.8?
KOUYOU MARU NO.8 is a Cargo flagged to Japan.
Where was KOUYOU MARU NO.8 last seen?
KOUYOU MARU NO.8 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOUYOU MARU NO.8's MMSI?
KOUYOU MARU NO.8's MMSI is 431006474. Call sign JD3868. IMO 9765299.
How big is KOUYOU MARU NO.8?
KOUYOU MARU NO.8 is about 62 m long, 9 m on the beam, drawing 3.8 m.
Is KOUYOU MARU NO.8 on the Master's Mate Safety Initiative Network?
Not yet. If KOUYOU MARU NO.8 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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