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
OSTAN
MMSI 265575480 · Call sign SDTW
Not yet on Master's MateType
Passenger
Flag
SWELength
30 m
Beam
6 m
Draft
1.8 m
Call sign
SDTW
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
62
OSTAN is a Swedish 30-metre ferry vessel. Below, she has a 6-metre beam and a draft of 1.8 m. Her papers read MMSI 265575480, call sign SDTW. OSTAN is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard OSTAN 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 08:47 UTC
Position
59.3972° N, 18.7114° E
Status
Under way (engine)
Speed
16.6 kn
Course
95°
Destination
-
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 OSTAN 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 OSTAN and switch it all on
Free to join · nothing to install to start · cancel anytime
About OSTAN
What kind of vessel is OSTAN?
OSTAN is a Passenger flagged to Sweden.
Where was OSTAN last seen?
OSTAN was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is OSTAN's MMSI?
OSTAN's MMSI is 265575480. Call sign SDTW.
How big is OSTAN?
OSTAN is about 30 m long, 6 m on the beam, drawing 1.8 m.
Is OSTAN on the Master's Mate Safety Initiative Network?
Not yet. If OSTAN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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