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
DONGNAM ACE
MMSI 440215590 · Call sign 240047
Not yet on Master's MateType
Tanker
Flag
KORLength
71 m
Beam
9 m
Draft
6.6 m
Call sign
240047
IMO
9254367
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
27
Out of South Korea, DONGNAM ACE is a 71-metre tank ship. She has a beam of 9 m and a draft measuring 6.6 metres. Her registration reads MMSI 440215590, call sign 240047, IMO 9254367. Add DONGNAM ACE to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card · for commercial operators
Eyes on DONGNAM ACE, 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
Live AIS position · Jun 9, 2026 21:28 UTC
Position
35.2507° N, 129.3313° E
Status
Under way (sailing)
Speed
12.2 kn
Course
50°
Destination
ULSAN
ETA
06-07 16:00 UTC
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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Joining the Safety Initiative Network doesn't just put DONGNAM ACE 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 DONGNAM ACE and switch it all on
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About DONGNAM ACE
What kind of vessel is DONGNAM ACE?
DONGNAM ACE is a Tanker flagged to South Korea.
Where was DONGNAM ACE last seen?
DONGNAM ACE was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is DONGNAM ACE's MMSI?
DONGNAM ACE's MMSI is 440215590. Call sign 240047. IMO 9254367.
How big is DONGNAM ACE?
DONGNAM ACE is about 71 m long, 9 m on the beam, drawing 6.6 m.
Is DONGNAM ACE on the Master's Mate Safety Initiative Network?
Not yet. If DONGNAM ACE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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