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.
Tanker
HOSEI MARU NO.3
MMSI 431402001 · Call sign JD2055
Not yet on Master's MateType
Tanker
Flag
JPNLength
64 m
Beam
10 m
Draft
3.8 m
Call sign
JD2055
IMO
8997558
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
77
HOSEI MARU NO.3 is a tank ship on the Japan registry, 64 metres on deck. She has a beam of 10 m and a draft measuring 3.8 metres. She broadcasts as MMSI 431402001, call sign JD2055, IMO 8997558. HOSEI MARU NO.3 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 HOSEI MARU NO.3, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Last known position · Jun 4, 2026
Position
35.5135° N, 139.7703° 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 HOSEI MARU 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 HOSEI MARU NO.3 and switch it all on
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About HOSEI MARU NO.3
What kind of vessel is HOSEI MARU NO.3?
HOSEI MARU NO.3 is a Tanker flagged to Japan.
Where was HOSEI MARU NO.3 last seen?
HOSEI MARU NO.3 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is HOSEI MARU NO.3's MMSI?
HOSEI MARU NO.3's MMSI is 431402001. Call sign JD2055. IMO 8997558.
How big is HOSEI MARU NO.3?
HOSEI MARU NO.3 is about 64 m long, 10 m on the beam, drawing 3.8 m.
Is HOSEI MARU NO.3 on the Master's Mate Safety Initiative Network?
Not yet. If HOSEI MARU NO.3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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