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
S GRACE
MMSI 525016358 · Call sign SSD
Not yet on Master's MateFlag
IDNDraft
1.1 m
Call sign
SSD
IMO
5646893
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
56
Registered in Indonesia, S GRACE is a boat. Below, she has a draft measuring 1.1 metres. On AIS she shows as MMSI 525016358, call sign SSD, IMO 5646893. Join S GRACE to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is S GRACE 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
Last known position · Jun 4, 2026
Position
6.8602° S, 112.4007° E
Wherever S GRACE roams, 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put S GRACE 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 S GRACE and switch it all on
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About S GRACE
What kind of vessel is S GRACE?
S GRACE is a vessel flagged to Indonesia.
Where was S GRACE last seen?
S GRACE was last reported in around 7°S 112°E in Jun 2026 on public AIS.
What is S GRACE's MMSI?
S GRACE's MMSI is 525016358. Call sign SSD. IMO 5646893.
Is S GRACE on the Master's Mate Safety Initiative Network?
Not yet. If S GRACE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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