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.
Anti-pollution
SGT SOSTER
MMSI 258028690 · Call sign LF7591
Not yet on Master's MateType
Anti-pollution
Flag
NORLength
15 m
Beam
6 m
Draft
1.5 m
Call sign
LF7591
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
32
On the Norwegian registry, SGT SOSTER is a 15-metre craft. She's built with a beam of 6 m and a 1.5-metre draft. On AIS she shows as MMSI 258028690, call sign LF7591. Add SGT SOSTER to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
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Is SGT SOSTER 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.
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Last known position · Jun 3, 2026
Position
59.1926° N, 10.8122° E
Crossing the Baltic Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put SGT SOSTER 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 SGT SOSTER and switch it all on
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About SGT SOSTER
What kind of vessel is SGT SOSTER?
SGT SOSTER is a Anti-pollution flagged to Norway.
Where was SGT SOSTER last seen?
SGT SOSTER was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is SGT SOSTER's MMSI?
SGT SOSTER's MMSI is 258028690. Call sign LF7591.
How big is SGT SOSTER?
SGT SOSTER is about 15 m long, 6 m on the beam, drawing 1.5 m.
Is SGT SOSTER on the Master's Mate Safety Initiative Network?
Not yet. If SGT SOSTER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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