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
>>SERO<<
MMSI 211544700 · Call sign DG5715
Not yet on Master's MateType
Cargo
Flag
DEULength
67 m
Beam
8 m
Draft
2.2 m
Call sign
DG5715
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
81
>>SERO<< is a German cargo carrier, 67 metres from stem to stern. She's built with 8 metres in the beam and a 2.2-metre draft. Look for MMSI 211544700, call sign DG5715. >>SERO<< is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for commercial operators
Eyes on >>SERO<<, 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
53.4995° N, 8.5817° E
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 >>SERO<< 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 >>SERO<< and switch it all on
Free to join · nothing to install to start · cancel anytime
About >>SERO<<
What kind of vessel is >>SERO<<?
>>SERO<< is a Cargo flagged to Germany.
Where was >>SERO<< last seen?
>>SERO<< was last reported in the North Sea in Jun 2026 on public AIS.
What is >>SERO<<'s MMSI?
>>SERO<<'s MMSI is 211544700. Call sign DG5715.
How big is >>SERO<<?
>>SERO<< is about 67 m long, 8 m on the beam, drawing 2.2 m.
Is >>SERO<< on the Master's Mate Safety Initiative Network?
Not yet. If >>SERO<< is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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