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.
Other
TESSA
MMSI 211268070 · Call sign DF4225
Not yet on Master's MateType
Other
Flag
DEULength
101 m
Beam
8 m
Draft
0.2 m
Call sign
DF4225
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
TESSA flies the German flag — a 101-metre boat. TESSA has a 8-metre beam and a 0.2-metre draft. Her papers read MMSI 211268070, call sign DF4225. Put TESSA on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
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Is TESSA 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.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 15:32 UTC
Position
53.5398° N, 9.9191° E
Status
Under way (engine)
Speed
0.0 kn
Course
0°
Destination
HH
ETA
03-12 18:00 UTC
Crossing 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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put TESSA 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 TESSA and switch it all on
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About TESSA
What kind of vessel is TESSA?
TESSA is a Other flagged to Germany.
Where was TESSA last seen?
TESSA was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is TESSA's MMSI?
TESSA's MMSI is 211268070. Call sign DF4225.
How big is TESSA?
TESSA is about 101 m long, 8 m on the beam, drawing 0.2 m.
Is TESSA on the Master's Mate Safety Initiative Network?
Not yet. If TESSA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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