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
HOUYOSIMARU
Tanker · Japan · last seen 35°N 135°E · Jun 2026 · MMSI 431401462 · Call sign JK5572
Not yet on Master's MateType
Tanker
Flag
JPNLength
68 m
Beam
11 m
Draft
4.5 m
Call sign
JK5572
IMO
9197624
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
11
HOUYOSIMARU is a Japanese 68-metre tank vessel. HOUYOSIMARU has 11 metres in the beam and a 4.5 m draft. On the registers she's MMSI 431401462, call sign JK5572, IMO 9197624. Add HOUYOSIMARU 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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Eyes on HOUYOSIMARU, 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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Live AIS position · Jun 15, 2026 13:08 UTC
Position
34.6634° N, 135.1851° E
Status
Under way (engine)
Speed
0.0 kn
Course
284°
Destination
>JP UKB K-H
ETA
06-15 08:00 UTC
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Joining the Safety Initiative Network doesn't just put HOUYOSIMARU 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.
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About HOUYOSIMARU
What kind of vessel is HOUYOSIMARU?
HOUYOSIMARU is a Tanker flagged to Japan.
Where was HOUYOSIMARU last seen?
HOUYOSIMARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is HOUYOSIMARU's MMSI?
HOUYOSIMARU's MMSI is 431401462. Call sign JK5572. IMO 9197624.
How big is HOUYOSIMARU?
HOUYOSIMARU is about 68 m long, 11 m on the beam, drawing 4.5 m.
Is HOUYOSIMARU on the Master's Mate Safety Initiative Network?
Not yet. If HOUYOSIMARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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