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.
Diving
CALYPSO
MMSI 211498340 · Call sign DB8451
Not yet on Master's MateType
Diving
Flag
DEULength
17 m
Beam
4 m
Draft
0.9 m
Call sign
DB8451
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
29
Registered in Germany, CALYPSO is a 17-metre vessel. CALYPSO has a beam measuring 4 metres and a 0.9-metre draft. Her papers read MMSI 211498340, call sign DB8451. CALYPSO is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is CALYPSO your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
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Last known position · Jun 3, 2026
Position
53.1074° N, 8.7404° E
Crossing the North Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put CALYPSO 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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim CALYPSO and switch it all on
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About CALYPSO
What kind of vessel is CALYPSO?
CALYPSO is a Diving flagged to Germany.
Where was CALYPSO last seen?
CALYPSO was last reported in the North Sea in Jun 2026 on public AIS.
What is CALYPSO's MMSI?
CALYPSO's MMSI is 211498340. Call sign DB8451.
How big is CALYPSO?
CALYPSO is about 17 m long, 4 m on the beam, drawing 0.9 m.
Is CALYPSO on the Master's Mate Safety Initiative Network?
Not yet. If CALYPSO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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