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
KOTOBUKIMARU
last seen 34°N 135°E · Jun 2026 · MMSI 431021987
Not yet on Master's MateFirst reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
KOTOBUKIMARU is a vessel. She broadcasts as MMSI 431021987. KOTOBUKIMARU belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Is KOTOBUKIMARU 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
Live AIS position · Jun 15, 2026 16:02 UTC
Position
33.8408° N, 134.6929° E
Status
Under way (engine)
Speed
0.0 kn
Course
241°
Wherever KOTOBUKIMARU roams, 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 KOTOBUKIMARU 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 KOTOBUKIMARU and switch it all on
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About KOTOBUKIMARU
What kind of vessel is KOTOBUKIMARU?
KOTOBUKIMARU is a vessel.
Where was KOTOBUKIMARU last seen?
KOTOBUKIMARU was last reported in around 34°N 135°E in Jun 2026 on public AIS.
What is KOTOBUKIMARU's MMSI?
KOTOBUKIMARU's MMSI is 431021987.
Is KOTOBUKIMARU on the Master's Mate Safety Initiative Network?
Not yet. If KOTOBUKIMARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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