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
KAGAYAKI
MMSI 431007958 · Call sign JD4005
Not yet on Master's MateType
Tug
Flag
JPNLength
38 m
Beam
10 m
Draft
3.8 m
Call sign
JD4005
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
36
Out of Japan, KAGAYAKI is a 38-metre tugboat. She carries a 10-metre beam and a 3.8 m draft. Look for MMSI 431007958, call sign JD4005. KAGAYAKI is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Built for boats that work — like KAGAYAKI.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Last known position · Jun 3, 2026
Position
35.4483° N, 139.6609° E
Working the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put KAGAYAKI 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 KAGAYAKI and switch it all on
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About KAGAYAKI
What kind of vessel is KAGAYAKI?
KAGAYAKI is a Tug flagged to Japan.
Where was KAGAYAKI last seen?
KAGAYAKI was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KAGAYAKI's MMSI?
KAGAYAKI's MMSI is 431007958. Call sign JD4005.
How big is KAGAYAKI?
KAGAYAKI is about 38 m long, 10 m on the beam, drawing 3.8 m.
Is KAGAYAKI on the Master's Mate Safety Initiative Network?
Not yet. If KAGAYAKI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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