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
KAIEI MARU
Cargo · Japan · last seen 34°N 132°E · Jun 2026 · MMSI 431015136 · Call sign JD4824
Not yet on Master's MateType
Cargo
Flag
JPNLength
99 m
Beam
18 m
Draft
5.5 m
Call sign
JD4824
IMO
9890159
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
10
Registered in Japan, KAIEI MARU is a 99-metre merchant ship. Below, she has 18 metres in the beam and a draft measuring 5.5 metres. She's on record as MMSI 431015136, call sign JD4824, IMO 9890159. The Master's Mate Safety Initiative Network welcomes KAIEI MARU — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for commercial operators
Eyes on KAIEI MARU, 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
Live AIS position · Jun 16, 2026 00:46 UTC
Position
34.1807° N, 132.2445° E
Status
Moored
Speed
0.0 kn
Course
143°
Destination
>JP HIJ KAITA
ETA
06-15 14:15 UTC
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put KAIEI MARU 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 KAIEI MARU and switch it all on
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About KAIEI MARU
What kind of vessel is KAIEI MARU?
KAIEI MARU is a Cargo flagged to Japan.
Where was KAIEI MARU last seen?
KAIEI MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KAIEI MARU's MMSI?
KAIEI MARU's MMSI is 431015136. Call sign JD4824. IMO 9890159.
How big is KAIEI MARU?
KAIEI MARU is about 99 m long, 18 m on the beam, drawing 5.5 m.
Is KAIEI MARU on the Master's Mate Safety Initiative Network?
Not yet. If KAIEI MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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