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.
Tug
BOS TETHYS
MMSI 247280800 · Call sign ICNH
Not yet on Master's MateType
Tug
Flag
ITALength
59 m
Beam
14 m
Draft
4.4 m
Call sign
ICNH
IMO
9552630
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
13
BOS TETHYS, a harbour tug on the Italy registry, measures 59 metres on deck. She has a 14-metre beam and a draft of 4.4 m. On AIS she appears as MMSI 247280800, call sign ICNH, IMO 9552630. BOS TETHYS can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
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Built for boats that work — like BOS TETHYS.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Last known position · Jun 2, 2026
Position
40.4238° N, 0.7034° E
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Joining the Safety Initiative Network doesn't just put BOS TETHYS on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 BOS TETHYS and switch it all on
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About BOS TETHYS
What kind of vessel is BOS TETHYS?
BOS TETHYS is a Tug flagged to Italy.
Where was BOS TETHYS last seen?
BOS TETHYS was last reported in the Western Mediterranean in Jun 2026 on public AIS.
What is BOS TETHYS's MMSI?
BOS TETHYS's MMSI is 247280800. Call sign ICNH. IMO 9552630.
How big is BOS TETHYS?
BOS TETHYS is about 59 m long, 14 m on the beam, drawing 4.4 m.
Is BOS TETHYS on the Master's Mate Safety Initiative Network?
Not yet. If BOS TETHYS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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