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.
Vessel
BM-5403
MMSI 261182612 · Call sign SR2612
Not yet on Master's MateFlag
POLLength
57 m
Beam
8 m
Call sign
SR2612
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
29
On the Polish registry, BM-5403 is a 57-metre boat. She's built with 8 metres in the beam. On AIS she appears as MMSI 261182612, call sign SR2612. Join BM-5403 to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is BM-5403 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 3, 2026
Position
52.3712° N, 9.1645° E
Crossing the North 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 BM-5403 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 BM-5403 and switch it all on
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About BM-5403
What kind of vessel is BM-5403?
BM-5403 is a vessel flagged to Poland.
Where was BM-5403 last seen?
BM-5403 was last reported in the North Sea in Jun 2026 on public AIS.
What is BM-5403's MMSI?
BM-5403's MMSI is 261182612. Call sign SR2612.
How big is BM-5403?
BM-5403 is about 57 m long, 8 m on the beam.
Is BM-5403 on the Master's Mate Safety Initiative Network?
Not yet. If BM-5403 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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