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.
Other
TR 439
MMSI 270398000 · Call sign OL 6498
Not yet on Master's MateType
Other
Flag
CZELength
84 m
Beam
11 m
Draft
1.5 m
Call sign
OL 6498
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
TR 439, a vessel flying the flag of Czechia, measures 84 metres on deck. TR 439 has a 11 m beam and a 1.5 m draft. Officially she's MMSI 270398000, call sign OL 6498. There's a place for TR 439 on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card
Is TR 439 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.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
50.2050° N, 14.6539° E
Wherever TR 439 roams, 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 TR 439 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 TR 439 and switch it all on
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About TR 439
What kind of vessel is TR 439?
TR 439 is a Other flagged to Czechia.
Where was TR 439 last seen?
TR 439 was last reported in around 50°N 15°E in Jun 2026 on public AIS.
What is TR 439's MMSI?
TR 439's MMSI is 270398000. Call sign OL 6498.
How big is TR 439?
TR 439 is about 84 m long, 11 m on the beam, drawing 1.5 m.
Is TR 439 on the Master's Mate Safety Initiative Network?
Not yet. If TR 439 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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