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.
Pleasure Craft
MAATJE JOHANNA
MMSI 244770894 · Call sign PC4437
Not yet on Master's MateType
Pleasure Craft
Flag
NLDLength
21 m
Beam
5 m
Draft
0.2 m
Call sign
PC4437
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
MAATJE JOHANNA is a recreational vessel wearing Dutch colours, spanning 21 metres. Her hull carries a 5-metre beam and a draft measuring 0.2 metres. On the registers she's MMSI 244770894, call sign PC4437. The Master's Mate Safety Initiative Network welcomes MAATJE JOHANNA — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for recreational captains
Keep MAATJE JOHANNA looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 10, 2026 01:52 UTC
Position
52.4600° N, 5.0384° E
Status
Moored
Speed
0.0 kn
Course
0°
Destination
MONNICKENDAM
Cruising 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 MAATJE JOHANNA 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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 MAATJE JOHANNA and switch it all on
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About MAATJE JOHANNA
What kind of vessel is MAATJE JOHANNA?
MAATJE JOHANNA is a Pleasure Craft flagged to Netherlands.
Where was MAATJE JOHANNA last seen?
MAATJE JOHANNA was last reported in the North Sea in Jun 2026 on public AIS.
What is MAATJE JOHANNA's MMSI?
MAATJE JOHANNA's MMSI is 244770894. Call sign PC4437.
How big is MAATJE JOHANNA?
MAATJE JOHANNA is about 21 m long, 5 m on the beam, drawing 0.2 m.
Is MAATJE JOHANNA on the Master's Mate Safety Initiative Network?
Not yet. If MAATJE JOHANNA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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