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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

TETSUYO MARU

Cargo · last seen 33°N 132°E · Jun 2026 · MMSI 431014061 · Call sign JD4670

Not yet on Master's Mate
Type
Cargo
Length
99 m
Beam
19 m
Draft
3.9 m
Call sign
JD4670
IMO
9858864
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6

TETSUYO MARU is a 99-metre merchant ship. Below, she has a 19 m beam and a draft measuring 3.9 metres. On AIS she shows as MMSI 431014061, call sign JD4670, IMO 9858864. Add TETSUYO MARU to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

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Live AIS position · Jun 16, 2026 21:22 UTC
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Position
33.0882° N, 131.8673° E
Status
Moored
Speed
4.4 kn
Course
255°
Destination
JP TMI DAIKO N
ETA
06-16 21:30 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.
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
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Onboard Cameras
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Hail Any Captain
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About TETSUYO MARU

What kind of vessel is TETSUYO MARU?
TETSUYO MARU is a Cargo.
Where was TETSUYO MARU last seen?
TETSUYO MARU was last reported in around 33°N 132°E in Jun 2026 on public AIS.
What is TETSUYO MARU's MMSI?
TETSUYO MARU's MMSI is 431014061. Call sign JD4670. IMO 9858864.
How big is TETSUYO MARU?
TETSUYO MARU is about 99 m long, 19 m on the beam, drawing 3.9 m.
Is TETSUYO MARU on the Master's Mate Safety Initiative Network?
Not yet. If TETSUYO MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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