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.
Passenger
PRINS CONSTANTIJN
MMSI 244780645 · Call sign PG5319
Not yet on Master's MateType
Passenger
Flag
NLDLength
18 m
Beam
4 m
Call sign
PG5319
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in the Netherlands, PRINS CONSTANTIJN is an 18-metre passenger craft. Her hull carries a 4-metre beam. Look for MMSI 244780645, call sign PG5319. Keep every soul aboard PRINS CONSTANTIJN covered with the free Master's Mate Safety Initiative Network.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard PRINS CONSTANTIJN safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
52.3672° N, 4.8954° E
Sailing 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.
Free with your claim · for passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put PRINS CONSTANTIJN on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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.
Claim PRINS CONSTANTIJN and switch it all on
Free to join · nothing to install to start · cancel anytime
About PRINS CONSTANTIJN
What kind of vessel is PRINS CONSTANTIJN?
PRINS CONSTANTIJN is a Passenger flagged to Netherlands.
Where was PRINS CONSTANTIJN last seen?
PRINS CONSTANTIJN was last reported in the North Sea in Jun 2026 on public AIS.
What is PRINS CONSTANTIJN's MMSI?
PRINS CONSTANTIJN's MMSI is 244780645. Call sign PG5319.
How big is PRINS CONSTANTIJN?
PRINS CONSTANTIJN is about 18 m long, 4 m on the beam.
Is PRINS CONSTANTIJN on the Master's Mate Safety Initiative Network?
Not yet. If PRINS CONSTANTIJN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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