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.
Cargo
POLAR KING
MMSI 273352370 · Call sign UBTI3
Not yet on Master's MateType
Cargo
Flag
RUSLength
133 m
Beam
20 m
Draft
7.1 m
Call sign
UBTI3
IMO
8711320
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
49
POLAR KING is a cargo ship wearing Russian colours, 133 metres in length. She's built with 20 metres in the beam and a 7.1 m draft. On AIS she appears as MMSI 273352370, call sign UBTI3, IMO 8711320. Put POLAR KING on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for commercial operators
Eyes on POLAR KING, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 21:39 UTC
Position
57.1664° N, 11.5991° E
Status
Under way (engine)
Speed
11.1 kn
Course
161°
Destination
RU LED
ETA
06-12 09:00 UTC
Transiting 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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Joining the Safety Initiative Network doesn't just put POLAR KING on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 POLAR KING and switch it all on
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About POLAR KING
What kind of vessel is POLAR KING?
POLAR KING is a Cargo flagged to Russia.
Where was POLAR KING last seen?
POLAR KING was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is POLAR KING's MMSI?
POLAR KING's MMSI is 273352370. Call sign UBTI3. IMO 8711320.
How big is POLAR KING?
POLAR KING is about 133 m long, 20 m on the beam, drawing 7.1 m.
Is POLAR KING on the Master's Mate Safety Initiative Network?
Not yet. If POLAR KING is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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