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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

KOUEI MARU NO.8

Cargo · last seen 35°N 135°E · Jun 2026 · MMSI 431018567 · Call sign JD5072

Not yet on Master's Mate
Type
Cargo
Length
61 m
Beam
10 m
Call sign
JD5072
IMO
9939761
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
11

KOUEI MARU NO.8 is a 61-metre cargo vessel. She's built with a beam measuring 10 metres. On AIS she appears as MMSI 431018567, call sign JD5072, IMO 9939761. KOUEI MARU NO.8 is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

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Live AIS position · Jun 15, 2026 12:44 UTC
Position
34.7083° N, 134.8537° E
Status
Moored
Speed
0.0 kn
Course
Destination
>JP HHR NIJIMA
ETA
06-15 12:40 UTC
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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.
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GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
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Onboard Cameras
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About KOUEI MARU NO.8

What kind of vessel is KOUEI MARU NO.8?
KOUEI MARU NO.8 is a Cargo.
Where was KOUEI MARU NO.8 last seen?
KOUEI MARU NO.8 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOUEI MARU NO.8's MMSI?
KOUEI MARU NO.8's MMSI is 431018567. Call sign JD5072. IMO 9939761.
How big is KOUEI MARU NO.8?
KOUEI MARU NO.8 is about 61 m long, 10 m on the beam.
Is KOUEI MARU NO.8 on the Master's Mate Safety Initiative Network?
Not yet. If KOUEI MARU NO.8 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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