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
Kakusei Maru
MMSI 431004235
Not yet on Master's MateFlag
JPNLength
104 m
IMO
9664914
AIS reports
2
Registered in Japan, Kakusei Maru is a 104-metre craft. Look for MMSI 431004235, IMO 9664914. Sign Kakusei Maru up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card
Is Kakusei 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
Live AIS position · Jun 9, 2026 21:52 UTC
Position
39.7731° N, 139.9730° E
Status
At anchor
Speed
0.1 kn
Course
202°
Destination
JP AFG OFF
ETA
06-09 16:00 UTC
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 Kakusei 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 Kakusei Maru and switch it all on
Free to join · nothing to install to start · cancel anytime
About Kakusei Maru
What kind of vessel is Kakusei Maru?
Kakusei Maru is a vessel flagged to Japan.
Where was Kakusei Maru last seen?
Kakusei Maru was last reported in the Sea of Japan on public AIS.
What is Kakusei Maru's MMSI?
Kakusei Maru's MMSI is 431004235. IMO 9664914.
How big is Kakusei Maru?
Kakusei Maru is about 104 m long.
Is Kakusei Maru on the Master's Mate Safety Initiative Network?
Not yet. If Kakusei Maru is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.