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
KOYO
Cargo · last seen 34°N 134°E · Jun 2026 · MMSI 431301812 · Call sign JD2279
Not yet on Master's MateType
Cargo
Length
80 m
Beam
14 m
Draft
3.1 m
Call sign
JD2279
IMO
9099236
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
9
KOYO is a cargo carrier, 80 metres from stem to stern. She carries a beam measuring 14 metres and a 3.1-metre draft. She's on record as MMSI 431301812, call sign JD2279, IMO 9099236. Join KOYO 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 KOYO, 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 15, 2026
Position
34.4311° N, 134.1713° 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 KOYO 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 KOYO and switch it all on
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About KOYO
What kind of vessel is KOYO?
KOYO is a Cargo.
Where was KOYO last seen?
KOYO was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KOYO's MMSI?
KOYO's MMSI is 431301812. Call sign JD2279. IMO 9099236.
How big is KOYO?
KOYO is about 80 m long, 14 m on the beam, drawing 3.1 m.
Is KOYO on the Master's Mate Safety Initiative Network?
Not yet. If KOYO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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