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
ITOUMARU NO.5BOAT
Japan · last seen 36°N 141°E · Jun 2026 · MMSI 431014062
Not yet on Master's MateFlag
JPNFirst reported
Jun 2026
Last reported
Jun 2026
AIS reports
18
ITOUMARU NO.5BOAT is a Japanese craft. She broadcasts as MMSI 431014062. Bring ITOUMARU NO.5BOAT aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
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Is ITOUMARU NO.5BOAT 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.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 2, 2026
Position
35.7353° N, 140.8333° E
Crossing the Sea of Japan? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put ITOUMARU NO.5BOAT 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.
Claim ITOUMARU NO.5BOAT and switch it all on
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About ITOUMARU NO.5BOAT
What kind of vessel is ITOUMARU NO.5BOAT?
ITOUMARU NO.5BOAT is a vessel flagged to Japan.
Where was ITOUMARU NO.5BOAT last seen?
ITOUMARU NO.5BOAT was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is ITOUMARU NO.5BOAT's MMSI?
ITOUMARU NO.5BOAT's MMSI is 431014062.
Is ITOUMARU NO.5BOAT on the Master's Mate Safety Initiative Network?
Not yet. If ITOUMARU NO.5BOAT is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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