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.
Cargo
KOHAKU
MMSI 431018476 · Call sign JD5046
Not yet on Master's MateType
Cargo
Flag
JPNLength
92 m
Beam
14 m
Draft
5 m
Call sign
JD5046
IMO
9931771
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
22
Registered in Japan, KOHAKU is a 92-metre cargo vessel. She's built with a 14 m beam and a 5-metre draft. On AIS she appears as MMSI 431018476, call sign JD5046, IMO 9931771. Join KOHAKU to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on KOHAKU, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 2, 2026
Position
35.9270° N, 140.6527° E
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put KOHAKU on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim KOHAKU and switch it all on
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About KOHAKU
What kind of vessel is KOHAKU?
KOHAKU is a Cargo flagged to Japan.
Where was KOHAKU last seen?
KOHAKU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOHAKU's MMSI?
KOHAKU's MMSI is 431018476. Call sign JD5046. IMO 9931771.
How big is KOHAKU?
KOHAKU is about 92 m long, 14 m on the beam, drawing 5 m.
Is KOHAKU on the Master's Mate Safety Initiative Network?
Not yet. If KOHAKU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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