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
THALASSA
MMSI 240323600 · Call sign SVB2220
Not yet on Master's MateType
Passenger
Flag
GRCLength
36 m
Beam
8 m
Draft
4.1 m
Call sign
SVB2220
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
47
A Greek passenger boat, THALASSA measures 36 metres. She carries 8 metres in the beam and a 4.1 m draft. Her registration reads MMSI 240323600, call sign SVB2220. Give THALASSA the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard THALASSA 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
37.7459° N, 23.4259° E
Sailing the Aegean 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 THALASSA 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 THALASSA and switch it all on
Free to join · nothing to install to start · cancel anytime
About THALASSA
What kind of vessel is THALASSA?
THALASSA is a Passenger flagged to Greece.
Where was THALASSA last seen?
THALASSA was last reported in the Aegean Sea in Jun 2026 on public AIS.
What is THALASSA's MMSI?
THALASSA's MMSI is 240323600. Call sign SVB2220.
How big is THALASSA?
THALASSA is about 36 m long, 8 m on the beam, drawing 4.1 m.
Is THALASSA on the Master's Mate Safety Initiative Network?
Not yet. If THALASSA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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