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Cargo
KOUTOKUMARU NO.12
MMSI 431024341 · Call sign JD5393
Not yet on Master's MateType
Cargo
Flag
JPNLength
70 m
Beam
14 m
Draft
4.9 m
Call sign
JD5393
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
52
KOUTOKUMARU NO.12 is a merchant vessel registered in Japan, measuring 70 metres. She's built with a beam of 14 m and a 4.9 m draft. She's listed under MMSI 431024341, call sign JD5393. Join KOUTOKUMARU NO.12 to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Eyes on KOUTOKUMARU NO.12, 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
38.3181° N, 141.0453° 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 KOUTOKUMARU NO.12 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.
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About KOUTOKUMARU NO.12
What kind of vessel is KOUTOKUMARU NO.12?
KOUTOKUMARU NO.12 is a Cargo flagged to Japan.
Where was KOUTOKUMARU NO.12 last seen?
KOUTOKUMARU NO.12 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOUTOKUMARU NO.12's MMSI?
KOUTOKUMARU NO.12's MMSI is 431024341. Call sign JD5393.
How big is KOUTOKUMARU NO.12?
KOUTOKUMARU NO.12 is about 70 m long, 14 m on the beam, drawing 4.9 m.
Is KOUTOKUMARU NO.12 on the Master's Mate Safety Initiative Network?
Not yet. If KOUTOKUMARU NO.12 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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