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
SEAPUP 3
MMSI 525119096
Not yet on Master's MateFlag
IDNLength
48.8 m
IMO
9808584
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
An Indonesian craft, SEAPUP 3 measures 48.8 metres. On AIS she appears as MMSI 525119096, IMO 9808584. The Master's Mate Safety Initiative Network welcomes SEAPUP 3 — free to join, cruiser-run, and always on watch.
Free forever · No credit card
Is SEAPUP 3 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
5.8119° S, 107.0526° E
Wherever SEAPUP 3 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 SEAPUP 3 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 SEAPUP 3 and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEAPUP 3
What kind of vessel is SEAPUP 3?
SEAPUP 3 is a vessel flagged to Indonesia.
Where was SEAPUP 3 last seen?
SEAPUP 3 was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is SEAPUP 3's MMSI?
SEAPUP 3's MMSI is 525119096. IMO 9808584.
How big is SEAPUP 3?
SEAPUP 3 is about 48.8 m long.
Is SEAPUP 3 on the Master's Mate Safety Initiative Network?
Not yet. If SEAPUP 3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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