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.
Dredging
STL H18
MMSI 563035410 · Call sign 9V3550
Not yet on Master's MateType
Dredging
Flag
SGPLength
68 m
Beam
40 m
Draft
3.8 m
Call sign
9V3550
IMO
9782443
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
48
STL H18, a harbour workboat registered in Singapore, measures 68 metres on deck. Below, she has a 40 m beam and a draft of 3.8 m. Her papers read MMSI 563035410, call sign 9V3550, IMO 9782443. Join STL H18 to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Built for boats that work — like STL H18.
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
1.2273° N, 103.6019° E
Working the Strait of Malacca? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put STL H18 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.
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About STL H18
What kind of vessel is STL H18?
STL H18 is a Dredging flagged to Singapore.
Where was STL H18 last seen?
STL H18 was last reported in the Strait of Malacca in Jun 2026 on public AIS.
What is STL H18's MMSI?
STL H18's MMSI is 563035410. Call sign 9V3550. IMO 9782443.
How big is STL H18?
STL H18 is about 68 m long, 40 m on the beam, drawing 3.8 m.
Is STL H18 on the Master's Mate Safety Initiative Network?
Not yet. If STL H18 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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