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.
Vessel
YAMASAKURA
MMSI 431004122 · Call sign JD3440
Not yet on Master's MateFlag
JPNLength
150 m
Beam
27 m
Draft
5.4 m
Call sign
JD3440
IMO
9634816
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
57
Registered in Japan, YAMASAKURA is a 150-metre vessel. She carries a 27 m beam and a 5.4 m draft. On AIS she shows as MMSI 431004122, call sign JD3440, IMO 9634816. It's free to add YAMASAKURA to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
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Is YAMASAKURA your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
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Last known position · Jun 4, 2026
Position
38.3183° N, 141.2909° E
Crossing the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put YAMASAKURA on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
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About YAMASAKURA
What kind of vessel is YAMASAKURA?
YAMASAKURA is a vessel flagged to Japan.
Where was YAMASAKURA last seen?
YAMASAKURA was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is YAMASAKURA's MMSI?
YAMASAKURA's MMSI is 431004122. Call sign JD3440. IMO 9634816.
How big is YAMASAKURA?
YAMASAKURA is about 150 m long, 27 m on the beam, drawing 5.4 m.
Is YAMASAKURA on the Master's Mate Safety Initiative Network?
Not yet. If YAMASAKURA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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