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
KOSTERBRIS
MMSI 265760610 · Call sign SDYZ
Not yet on Master's MateType
Passenger
Flag
SWELength
26 m
Beam
9 m
Draft
2 m
Call sign
SDYZ
IMO
9358747
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
63
KOSTERBRIS, a ferry flying the Swedish flag, measures 26 metres on deck. She carries 9 metres in the beam and a 2-metre draft. On AIS she shows as MMSI 265760610, call sign SDYZ, IMO 9358747. Join KOSTERBRIS to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard KOSTERBRIS 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 11:58 UTC
Position
58.9389° N, 11.1688° E
Status
Under way (engine)
Speed
0.0 kn
Course
221°
Destination
SESMD
ETA
03-15 17:00 UTC
Sailing the Baltic Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put KOSTERBRIS 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 KOSTERBRIS and switch it all on
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About KOSTERBRIS
What kind of vessel is KOSTERBRIS?
KOSTERBRIS is a Passenger flagged to Sweden.
Where was KOSTERBRIS last seen?
KOSTERBRIS was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is KOSTERBRIS's MMSI?
KOSTERBRIS's MMSI is 265760610. Call sign SDYZ. IMO 9358747.
How big is KOSTERBRIS?
KOSTERBRIS is about 26 m long, 9 m on the beam, drawing 2 m.
Is KOSTERBRIS on the Master's Mate Safety Initiative Network?
Not yet. If KOSTERBRIS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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