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.
Other
REX
MMSI 244270184 · Call sign PD3689
Not yet on Master's MateType
Other
Flag
NLDLength
23 m
Beam
5 m
Call sign
PD3689
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in the Netherlands, REX is a 23-metre boat. REX has a 5 m beam. On AIS she shows as MMSI 244270184, call sign PD3689. There's a place for REX on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card
Is REX 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 07:43 UTC
Position
51.3829° N, 4.0330° E
Status
Moored
Speed
0.0 kn
Course
360°
Destination
WALSOORDEN
Crossing the North Sea? 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 REX 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 REX and switch it all on
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About REX
What kind of vessel is REX?
REX is a Other flagged to Netherlands.
Where was REX last seen?
REX was last reported in the North Sea in Jun 2026 on public AIS.
What is REX's MMSI?
REX's MMSI is 244270184. Call sign PD3689.
How big is REX?
REX is about 23 m long, 5 m on the beam.
Is REX on the Master's Mate Safety Initiative Network?
Not yet. If REX is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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