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
POSEIDON
MMSI 261184770 · Call sign SR4770
Not yet on Master's MateType
Cargo
Flag
POLLength
67 m
Beam
8 m
Draft
1 m
Call sign
SR4770
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
28
POSEIDON is a cargo carrier wearing Polish colours, 67 metres from stem to stern. She's built with a 8-metre beam and a 1-metre draft. On AIS she shows as MMSI 261184770, call sign SR4770. Join POSEIDON to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card · for commercial operators
Eyes on POSEIDON, 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
Last known position · Jun 4, 2026
Position
51.2168° N, 6.7420° E
Transiting the North Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put POSEIDON 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 POSEIDON and switch it all on
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About POSEIDON
What kind of vessel is POSEIDON?
POSEIDON is a Cargo flagged to Poland.
Where was POSEIDON last seen?
POSEIDON was last reported in the North Sea in Jun 2026 on public AIS.
What is POSEIDON's MMSI?
POSEIDON's MMSI is 261184770. Call sign SR4770.
How big is POSEIDON?
POSEIDON is about 67 m long, 8 m on the beam, drawing 1 m.
Is POSEIDON on the Master's Mate Safety Initiative Network?
Not yet. If POSEIDON is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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