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
KEOYOUNG SUN5
MMSI 440736000 · Call sign D7US
Not yet on Master's MateType
Tanker
Flag
KORLength
69 m
Beam
10 m
Draft
4.5 m
Call sign
D7US
IMO
9321794
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
21
KEOYOUNG SUN5 is a South Korean 69-metre tank vessel. KEOYOUNG SUN5 has 10 metres in the beam and a 4.5 m draft. Officially she's MMSI 440736000, call sign D7US, IMO 9321794. Give KEOYOUNG SUN5 the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for commercial operators
Eyes on KEOYOUNG SUN5, 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
Last known position · Jun 2, 2026
Position
35.2581° N, 129.3669° E
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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put KEOYOUNG SUN5 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 KEOYOUNG SUN5 and switch it all on
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About KEOYOUNG SUN5
What kind of vessel is KEOYOUNG SUN5?
KEOYOUNG SUN5 is a Tanker flagged to South Korea.
Where was KEOYOUNG SUN5 last seen?
KEOYOUNG SUN5 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KEOYOUNG SUN5's MMSI?
KEOYOUNG SUN5's MMSI is 440736000. Call sign D7US. IMO 9321794.
How big is KEOYOUNG SUN5?
KEOYOUNG SUN5 is about 69 m long, 10 m on the beam, drawing 4.5 m.
Is KEOYOUNG SUN5 on the Master's Mate Safety Initiative Network?
Not yet. If KEOYOUNG SUN5 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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