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Tanker
KOYO MARU NO.12
MMSI 431402014 · Call sign JD2089
Not yet on Master's MateType
Tanker
Flag
JPNLength
65 m
Beam
10 m
Draft
4.5 m
Call sign
JD2089
IMO
9325647
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
16
KOYO MARU NO.12 is a Japanese 65-metre tank vessel. Her hull carries 10 metres in the beam and a draft of 4.5 m. Her papers read MMSI 431402014, call sign JD2089, IMO 9325647. KOYO MARU NO.12 is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for commercial operators
Eyes on KOYO MARU 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
34.1622° N, 135.0378° 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 KOYO MARU 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.
Claim KOYO MARU NO.12 and switch it all on
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About KOYO MARU NO.12
What kind of vessel is KOYO MARU NO.12?
KOYO MARU NO.12 is a Tanker flagged to Japan.
Where was KOYO MARU NO.12 last seen?
KOYO MARU NO.12 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOYO MARU NO.12's MMSI?
KOYO MARU NO.12's MMSI is 431402014. Call sign JD2089. IMO 9325647.
How big is KOYO MARU NO.12?
KOYO MARU NO.12 is about 65 m long, 10 m on the beam, drawing 4.5 m.
Is KOYO MARU NO.12 on the Master's Mate Safety Initiative Network?
Not yet. If KOYO MARU NO.12 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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