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.
Cargo
KOSTRA 3
MMSI 244660735 · Call sign PA5860
Not yet on Master's MateType
Cargo
Flag
NLDLength
40 m
Beam
6 m
Call sign
PA5860
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in the Netherlands, KOSTRA 3 is a 40-metre merchant ship. Below, she has a 6 m beam. On the registers she's MMSI 244660735, call sign PA5860. Join KOSTRA 3 to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on KOSTRA 3, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 16:11 UTC
Position
51.8902° N, 4.4126° E
Status
Moored
Speed
0.0 kn
Course
360°
Destination
ROTTERDAM
ETA
09-01 13:56 UTC
Transiting 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 KOSTRA 3 on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 KOSTRA 3 and switch it all on
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About KOSTRA 3
What kind of vessel is KOSTRA 3?
KOSTRA 3 is a Cargo flagged to Netherlands.
Where was KOSTRA 3 last seen?
KOSTRA 3 was last reported in the North Sea in Jun 2026 on public AIS.
What is KOSTRA 3's MMSI?
KOSTRA 3's MMSI is 244660735. Call sign PA5860.
How big is KOSTRA 3?
KOSTRA 3 is about 40 m long, 6 m on the beam.
Is KOSTRA 3 on the Master's Mate Safety Initiative Network?
Not yet. If KOSTRA 3 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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