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
NICHIOH MARU
MMSI 431003232
Not yet on Master's MateFlag
JPNLength
170 m
IMO
9609184
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
16
NICHIOH MARU flies the Japanese flag — a 170-metre boat. Her papers read MMSI 431003232, IMO 9609184. NICHIOH MARU can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card
Is NICHIOH MARU 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
35.3163° N, 139.6510° 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.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put NICHIOH MARU 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 NICHIOH MARU and switch it all on
Free to join · nothing to install to start · cancel anytime
About NICHIOH MARU
What kind of vessel is NICHIOH MARU?
NICHIOH MARU is a vessel flagged to Japan.
Where was NICHIOH MARU last seen?
NICHIOH MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is NICHIOH MARU's MMSI?
NICHIOH MARU's MMSI is 431003232. IMO 9609184.
How big is NICHIOH MARU?
NICHIOH MARU is about 170 m long.
Is NICHIOH MARU on the Master's Mate Safety Initiative Network?
Not yet. If NICHIOH MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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