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
AS CONSTANTINA
MMSI 636093054 · Call sign 5LDH6
Not yet on Master's MateType
Cargo
Flag
LBRLength
221 m
Beam
30 m
Draft
8.8 m
Call sign
5LDH6
IMO
9308390
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
AS CONSTANTINA, a cargo carrier flying the flag of Liberia, measures 221 metres on deck. She carries a 30 m beam and a 8.8-metre draft. Find her under MMSI 636093054, call sign 5LDH6, IMO 9308390. The Master's Mate Safety Initiative Network welcomes AS CONSTANTINA — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for commercial operators
Eyes on AS CONSTANTINA, 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
Last known position · Jun 4, 2026
Position
37.9540° N, 23.5953° E
Transiting 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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put AS CONSTANTINA 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 AS CONSTANTINA and switch it all on
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About AS CONSTANTINA
What kind of vessel is AS CONSTANTINA?
AS CONSTANTINA is a Cargo flagged to Liberia.
Where was AS CONSTANTINA last seen?
AS CONSTANTINA was last reported in the Aegean Sea in Jun 2026 on public AIS.
What is AS CONSTANTINA's MMSI?
AS CONSTANTINA's MMSI is 636093054. Call sign 5LDH6. IMO 9308390.
How big is AS CONSTANTINA?
AS CONSTANTINA is about 221 m long, 30 m on the beam, drawing 8.8 m.
Is AS CONSTANTINA on the Master's Mate Safety Initiative Network?
Not yet. If AS CONSTANTINA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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