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
CIELO DI ULSAN
MMSI 256902000 · Call sign 9HA4030
Not yet on Master's MateType
Tanker
Flag
MLTLength
183 m
Beam
27 m
Draft
7.5 m
Call sign
9HA4030
IMO
9717266
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
84
On the Maltese registry, CIELO DI ULSAN is an 183-metre tank vessel. Below, she has a beam of 27 m and a draft measuring 7.5 metres. Officially she's MMSI 256902000, call sign 9HA4030, IMO 9717266. The Master's Mate Safety Initiative Network welcomes CIELO DI ULSAN — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for commercial operators
Eyes on CIELO DI ULSAN, 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 3, 2026
Position
58.3542° N, 11.4363° E
Transiting the Baltic Sea? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put CIELO DI ULSAN 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 CIELO DI ULSAN and switch it all on
Free to join · nothing to install to start · cancel anytime
About CIELO DI ULSAN
What kind of vessel is CIELO DI ULSAN?
CIELO DI ULSAN is a Tanker flagged to Malta.
Where was CIELO DI ULSAN last seen?
CIELO DI ULSAN was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is CIELO DI ULSAN's MMSI?
CIELO DI ULSAN's MMSI is 256902000. Call sign 9HA4030. IMO 9717266.
How big is CIELO DI ULSAN?
CIELO DI ULSAN is about 183 m long, 27 m on the beam, drawing 7.5 m.
Is CIELO DI ULSAN on the Master's Mate Safety Initiative Network?
Not yet. If CIELO DI ULSAN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.