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.
Sailing
COSI
MMSI 244024607 · Call sign PH3985
Not yet on Master's MateType
Sailing
Flag
NLDLength
13 m
Beam
3 m
Call sign
PH3985
First reported
May 2026
Last reported
May 2026
AIS reports
85
COSI, a Dutch sailing yacht, measures 13 metres on deck. COSI has a 3 m beam. On the registers she's MMSI 244024607, call sign PH3985. COSI can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for cruisers
Sleep easy on the hook aboard COSI.
GPS-precise anchor-drag alarms, ETA-calibrated weather routing, worldwide charts, and cruisers watching each other’s backs.
Set her anchor watch — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · May 27, 2026
Position
14.0785° N, 60.9484° W
Sailing the Caribbean? 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 cruisers
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put COSI 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.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
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.
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.
Claim COSI and switch it all on
Free to join · nothing to install to start · cancel anytime
About COSI
What kind of vessel is COSI?
COSI is a Sailing flagged to Netherlands.
Where was COSI last seen?
COSI was last reported in the Caribbean in May 2026 on public AIS.
What is COSI's MMSI?
COSI's MMSI is 244024607. Call sign PH3985.
How big is COSI?
COSI is about 13 m long, 3 m on the beam.
Is COSI on the Master's Mate Safety Initiative Network?
Not yet. If COSI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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