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.
Passenger
ALTONA
MMSI 211437160 · Call sign DA6171
Not yet on Master's MateType
Passenger
Flag
DEULength
25 m
Beam
6 m
Call sign
DA6171
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
Registered in Germany, ALTONA is a 25-metre passenger boat. ALTONA has a 6 m beam. She broadcasts as MMSI 211437160, call sign DA6171. Claim ALTONA free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard ALTONA safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 04:00 UTC
Position
53.5390° N, 9.9886° E
Status
Under way (engine)
Speed
7.9 kn
Course
313°
Destination
HAMBURG
Sailing the Baltic 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put ALTONA on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
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 ALTONA and switch it all on
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About ALTONA
What kind of vessel is ALTONA?
ALTONA is a Passenger flagged to Germany.
Where was ALTONA last seen?
ALTONA was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is ALTONA's MMSI?
ALTONA's MMSI is 211437160. Call sign DA6171.
How big is ALTONA?
ALTONA is about 25 m long, 6 m on the beam.
Is ALTONA on the Master's Mate Safety Initiative Network?
Not yet. If ALTONA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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