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
POLONIA
MMSI 209864000 · Call sign 5BKU5
Not yet on Master's MateType
Passenger
Flag
CYPLength
170 m
Beam
28 m
Draft
6.1 m
Call sign
5BKU5
IMO
9108350
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
42
POLONIA is a Cypriot 170-metre passenger vessel. She's built with a 28-metre beam and a 6.1 m draft. Find her under MMSI 209864000, call sign 5BKU5, IMO 9108350. There's a place for POLONIA on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard POLONIA 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
Last known position · Jun 3, 2026
Position
55.1712° N, 13.8604° E
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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put POLONIA 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 POLONIA and switch it all on
Free to join · nothing to install to start · cancel anytime
About POLONIA
What kind of vessel is POLONIA?
POLONIA is a Passenger flagged to Cyprus.
Where was POLONIA last seen?
POLONIA was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is POLONIA's MMSI?
POLONIA's MMSI is 209864000. Call sign 5BKU5. IMO 9108350.
How big is POLONIA?
POLONIA is about 170 m long, 28 m on the beam, drawing 6.1 m.
Is POLONIA on the Master's Mate Safety Initiative Network?
Not yet. If POLONIA is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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