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.
Vessel
STL H3
MMSI 563031580
Not yet on Master's MateFlag
SGPLength
68.4 m
IMO
9763514
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
49
Registered in Singapore, STL H3 is a 68.4-metre craft. On AIS she shows as MMSI 563031580, IMO 9763514. STL H3 belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card
Is STL H3 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 16:22 UTC
Position
1.2276° N, 103.6012° E
Status
Moored
Speed
7.8 kn
Course
1°
Crossing the Strait of Malacca? 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 STL H3 on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim STL H3 and switch it all on
Free to join · nothing to install to start · cancel anytime
About STL H3
What kind of vessel is STL H3?
STL H3 is a vessel flagged to Singapore.
Where was STL H3 last seen?
STL H3 was last reported in the Strait of Malacca in Jun 2026 on public AIS.
What is STL H3's MMSI?
STL H3's MMSI is 563031580. IMO 9763514.
How big is STL H3?
STL H3 is about 68.4 m long.
Is STL H3 on the Master's Mate Safety Initiative Network?
Not yet. If STL H3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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