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
NAN EI MARU
MMSI 431013742 · Call sign JD4638
Not yet on Master's MateType
Cargo
Flag
JPNLength
75 m
Beam
12 m
Draft
4.5 m
Call sign
JD4638
IMO
9873400
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
NAN EI MARU flies the Japanese flag — a 75-metre merchant ship. Below, she has 12 metres in the beam and a draft measuring 4.5 metres. Officially she's MMSI 431013742, call sign JD4638, IMO 9873400. Add NAN EI MARU 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 NAN EI 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 9, 2026 21:02 UTC
Position
35.3540° N, 132.4568° E
Status
Under way (engine)
Speed
11.5 kn
Course
44°
Transiting the Sea of Japan? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put NAN EI 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 NAN EI MARU and switch it all on
Free to join · nothing to install to start · cancel anytime
About NAN EI MARU
What kind of vessel is NAN EI MARU?
NAN EI MARU is a Cargo flagged to Japan.
Where was NAN EI MARU last seen?
NAN EI MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is NAN EI MARU's MMSI?
NAN EI MARU's MMSI is 431013742. Call sign JD4638. IMO 9873400.
How big is NAN EI MARU?
NAN EI MARU is about 75 m long, 12 m on the beam, drawing 4.5 m.
Is NAN EI MARU on the Master's Mate Safety Initiative Network?
Not yet. If NAN EI MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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