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.
Tug
REIHO MARU
Tug · last seen 35°N 135°E · Jun 2026 · MMSI 431028999 · Call sign JD5622
Not yet on Master's MateType
Tug
Length
34 m
Beam
9 m
Draft
3 m
Call sign
JD5622
IMO
1134303
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
REIHO MARU is a tugboat, 34 metres in length. She's built with a 9 m beam and a 3 m draft. Look for MMSI 431028999, call sign JD5622, IMO 1134303. REIHO MARU earns her keep on the water; the free Master's Mate Safety Initiative Network keeps a watching fleet and a distress mesh close at hand.
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Built for boats that work — like REIHO MARU.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Live AIS position · Jun 15, 2026 13:48 UTC
Position
34.6759° N, 135.2019° E
Status
Under way (engine)
Speed
0.0 kn
Course
330°
Destination
>JP UKB
ETA
06-14 12:00 UTC
Working the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put REIHO MARU on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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 REIHO MARU and switch it all on
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About REIHO MARU
What kind of vessel is REIHO MARU?
REIHO MARU is a Tug.
Where was REIHO MARU last seen?
REIHO MARU was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is REIHO MARU's MMSI?
REIHO MARU's MMSI is 431028999. Call sign JD5622. IMO 1134303.
How big is REIHO MARU?
REIHO MARU is about 34 m long, 9 m on the beam, drawing 3 m.
Is REIHO MARU on the Master's Mate Safety Initiative Network?
Not yet. If REIHO MARU is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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