Sign up free Dashboard Log out
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

HARUMARU NO.3

Cargo · Japan · last seen 34°N 134°E · Jun 2026 · MMSI 431006912 · Call sign JD3839

Not yet on Master's Mate
Type
Cargo
Flag
JPNJPN
Length
154 m
Beam
26 m
Draft
6.5 m
Call sign
JD3839
IMO
9737034
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
20

On the Japanese registry, HARUMARU NO.3 is a 154-metre cargo ship. She carries a beam measuring 26 metres and a 6.5 m draft. Her registration reads MMSI 431006912, call sign JD3839, IMO 9737034. HARUMARU NO.3 can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.

Free forever · No credit card · for commercial operators

Eyes on HARUMARU NO.3, 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 16:52 UTC
Track HARUMARU NO.3 live — sign up free →
Position
34.3925° N, 134.3534° E
Status
Under way (engine)
Speed
14.7 kn
Course
72°
Destination
>JP SBK SUKEMATSU 7
ETA
06-16 06:00 UTC
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 HARUMARU NO.3 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 HARUMARU NO.3 and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About HARUMARU NO.3

What kind of vessel is HARUMARU NO.3?
HARUMARU NO.3 is a Cargo flagged to Japan.
Where was HARUMARU NO.3 last seen?
HARUMARU NO.3 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is HARUMARU NO.3's MMSI?
HARUMARU NO.3's MMSI is 431006912. Call sign JD3839. IMO 9737034.
How big is HARUMARU NO.3?
HARUMARU NO.3 is about 154 m long, 26 m on the beam, drawing 6.5 m.
Is HARUMARU NO.3 on the Master's Mate Safety Initiative Network?
Not yet. If HARUMARU NO.3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

© 2026 Master’s Mate. All rights reserved.