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
SITHONIA
MMSI 240170100 · Call sign SVA8705
Not yet on Master's MateType
Sailing
Flag
GRCLength
13 m
Beam
8 m
Draft
1.4 m
Call sign
SVA8705
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
13
On the Greek registry, SITHONIA is a 13-metre ocean-going sailboat. She has a 8-metre beam and a draft of 1.4 m. On AIS she appears as MMSI 240170100, call sign SVA8705. Give SITHONIA the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for cruisers
Sleep easy on the hook aboard SITHONIA.
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 · Jun 4, 2026
Position
37.7425° N, 23.4268° 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 cruisers
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SITHONIA 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 SITHONIA and switch it all on
Free to join · nothing to install to start · cancel anytime
About SITHONIA
What kind of vessel is SITHONIA?
SITHONIA is a Sailing flagged to Greece.
Where was SITHONIA last seen?
SITHONIA was last reported in the Aegean Sea in Jun 2026 on public AIS.
What is SITHONIA's MMSI?
SITHONIA's MMSI is 240170100. Call sign SVA8705.
How big is SITHONIA?
SITHONIA is about 13 m long, 8 m on the beam, drawing 1.4 m.
Is SITHONIA on the Master's Mate Safety Initiative Network?
Not yet. If SITHONIA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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