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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.
Tanker
SHOKYU MARU
MMSI 431020792 · Call sign JD5205
Not yet on Master's MateType
Tanker
Flag
JPNLength
105 m
Beam
16 m
Draft
5.4 m
Call sign
JD5205
IMO
9965497
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
53
Out of Japan, SHOKYU MARU is a 105-metre tank vessel. SHOKYU MARU has a beam of 16 m and a 5.4-metre draft. On AIS she shows as MMSI 431020792, call sign JD5205, IMO 9965497. Sign SHOKYU MARU up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for commercial operators
Eyes on SHOKYU MARU, 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
38.3485° N, 141.3375° 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 SHOKYU MARU 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 SHOKYU MARU and switch it all on
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About SHOKYU MARU
What kind of vessel is SHOKYU MARU?
SHOKYU MARU is a Tanker flagged to Japan.
Where was SHOKYU MARU last seen?
SHOKYU MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SHOKYU MARU's MMSI?
SHOKYU MARU's MMSI is 431020792. Call sign JD5205. IMO 9965497.
How big is SHOKYU MARU?
SHOKYU MARU is about 105 m long, 16 m on the beam, drawing 5.4 m.
Is SHOKYU MARU on the Master's Mate Safety Initiative Network?
Not yet. If SHOKYU MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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