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
KAIRIN MARU
Cargo · last seen 34°N 135°E · Jun 2026 · MMSI 431013507 · Call sign JD4631
Not yet on Master's MateType
Cargo
Length
70 m
Beam
12 m
Draft
3.8 m
Call sign
JD4631
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
15
KAIRIN MARU is a cargo ship, 70 metres in length. KAIRIN MARU has a beam measuring 12 metres and a 3.8 m draft. She's on record as MMSI 431013507, call sign JD4631. KAIRIN MARU is welcome on the Master's Mate Safety Initiative Network — free situational awareness and a watch network shared by vessels of every size.
Free forever · No credit card · for commercial operators
Eyes on KAIRIN 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 15, 2026 16:42 UTC
Position
33.5749° N, 135.3658° E
Status
Under way (engine)
Speed
8.5 kn
Course
138°
Destination
JP TYO V OFF
ETA
06-17 02:00 UTC
Wherever KAIRIN MARU roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put KAIRIN 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 KAIRIN MARU and switch it all on
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About KAIRIN MARU
What kind of vessel is KAIRIN MARU?
KAIRIN MARU is a Cargo.
Where was KAIRIN MARU last seen?
KAIRIN MARU was last reported in around 34°N 135°E in Jun 2026 on public AIS.
What is KAIRIN MARU's MMSI?
KAIRIN MARU's MMSI is 431013507. Call sign JD4631.
How big is KAIRIN MARU?
KAIRIN MARU is about 70 m long, 12 m on the beam, drawing 3.8 m.
Is KAIRIN MARU on the Master's Mate Safety Initiative Network?
Not yet. If KAIRIN MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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