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
KOUSYOUMARU
Cargo · last seen 35°N 135°E · Jun 2026 · MMSI 431003083 · Call sign JD3278
Not yet on Master's MateType
Cargo
Length
75 m
Beam
12 m
Draft
4.8 m
Call sign
JD3278
IMO
9633628
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
10
KOUSYOUMARU is a 75-metre freighter. She has 12 metres in the beam and a draft of 4.8 m. She's listed under MMSI 431003083, call sign JD3278, IMO 9633628. Add KOUSYOUMARU to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card · for commercial operators
Eyes on KOUSYOUMARU, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Live AIS position · Jun 15, 2026 13:55 UTC
Position
34.5124° N, 135.4080° E
Status
Under way (engine)
Speed
0.0 kn
Course
160°
Destination
JP SBK
ETA
06-14 07:30 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 KOUSYOUMARU 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.
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About KOUSYOUMARU
What kind of vessel is KOUSYOUMARU?
KOUSYOUMARU is a Cargo.
Where was KOUSYOUMARU last seen?
KOUSYOUMARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOUSYOUMARU's MMSI?
KOUSYOUMARU's MMSI is 431003083. Call sign JD3278. IMO 9633628.
How big is KOUSYOUMARU?
KOUSYOUMARU is about 75 m long, 12 m on the beam, drawing 4.8 m.
Is KOUSYOUMARU on the Master's Mate Safety Initiative Network?
Not yet. If KOUSYOUMARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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