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.
Cargo
SYOUHAKUMARU
Cargo · last seen 36°N 140°E · Jun 2026 · MMSI 431010062 · Call sign JD4259
Not yet on Master's MateType
Cargo
Length
79 m
Beam
14 m
Draft
4.7 m
Call sign
JD4259
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
8
SYOUHAKUMARU is a 79-metre merchant vessel. She's built with a 14 m beam and a 4.7 m draft. On AIS she appears as MMSI 431010062, call sign JD4259. SYOUHAKUMARU 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 SYOUHAKUMARU, 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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Live AIS position · Jun 16, 2026 01:12 UTC
Position
35.5104° N, 139.7324° E
Status
Moored
Speed
0.0 kn
Course
33°
Destination
>JP FNB IE OFF
ETA
06-16 08:00 UTC
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SYOUHAKUMARU 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 SYOUHAKUMARU and switch it all on
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About SYOUHAKUMARU
What kind of vessel is SYOUHAKUMARU?
SYOUHAKUMARU is a Cargo.
Where was SYOUHAKUMARU last seen?
SYOUHAKUMARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SYOUHAKUMARU's MMSI?
SYOUHAKUMARU's MMSI is 431010062. Call sign JD4259.
How big is SYOUHAKUMARU?
SYOUHAKUMARU is about 79 m long, 14 m on the beam, drawing 4.7 m.
Is SYOUHAKUMARU on the Master's Mate Safety Initiative Network?
Not yet. If SYOUHAKUMARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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