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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

S/Y 4K

MMSI 256002079 · Call sign 9HB7599

Not yet on Master's Mate
Type
Sailing
Flag
MLTMLT
Length
40 m
Beam
6 m
Draft
4.2 m
Call sign
9HB7599
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85

S/Y 4K, a Maltese sailing yacht, measures 40 metres on deck. She's built with a 6-metre beam and a 4.2 m draft. On AIS she appears as MMSI 256002079, call sign 9HB7599. Put S/Y 4K on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.

Free forever · No credit card · for cruisers

Sleep easy on the hook aboard S/Y 4K.

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

Live AIS position · Jun 9, 2026 21:11 UTC
Position
41.2107° N, 1.7302° E
Status
Moored
Speed
0.0 kn
Course
329°
Destination
VILANOVA
ETA
05-28 08:00 UTC
Sailing the Western Mediterranean? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put S/Y 4K 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 S/Y 4K and switch it all on
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About S/Y 4K

What kind of vessel is S/Y 4K?
S/Y 4K is a Sailing flagged to Malta.
Where was S/Y 4K last seen?
S/Y 4K was last reported in the Western Mediterranean in Jun 2026 on public AIS.
What is S/Y 4K's MMSI?
S/Y 4K's MMSI is 256002079. Call sign 9HB7599.
How big is S/Y 4K?
S/Y 4K is about 40 m long, 6 m on the beam, drawing 4.2 m.
Is S/Y 4K on the Master's Mate Safety Initiative Network?
Not yet. If S/Y 4K is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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