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.
Cargo
CALYPSO
MMSI 211387530 · Call sign DF4973
Not yet on Master's MateType
Cargo
Flag
DEULength
111 m
Beam
11 m
Draft
1.7 m
Call sign
DF4973
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
32
On the German registry, CALYPSO is an 111-metre general cargo ship. Below, she has a beam of 11 m and a draft measuring 1.7 metres. Her registration reads MMSI 211387530, call sign DF4973. CALYPSO can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for commercial operators
Eyes on CALYPSO, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 12:25 UTC
Position
52.4650° N, 4.8140° E
Status
Under way (engine)
Speed
0.0 kn
Course
108°
Destination
RDAM
Transiting the North 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put CALYPSO on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 CALYPSO and switch it all on
Free to join · nothing to install to start · cancel anytime
About CALYPSO
What kind of vessel is CALYPSO?
CALYPSO is a Cargo 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 211387530. Call sign DF4973.
How big is CALYPSO?
CALYPSO is about 111 m long, 11 m on the beam, drawing 1.7 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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