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
RETRO
MMSI 261184900 · Call sign SR4900
Not yet on Master's MateType
Cargo
Flag
POLLength
67 m
Beam
8 m
Call sign
SR4900
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
40
RETRO is a Polish 67-metre cargo carrier. RETRO has a beam of 8 m. Look for MMSI 261184900, call sign SR4900. RETRO is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for commercial operators
Eyes on RETRO, 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 3, 2026
Position
52.3375° N, 10.5215° E
Wherever RETRO roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
Free with your claim · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put RETRO 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 RETRO and switch it all on
Free to join · nothing to install to start · cancel anytime
About RETRO
What kind of vessel is RETRO?
RETRO is a Cargo flagged to Poland.
Where was RETRO last seen?
RETRO was last reported in around 52°N 11°E in Jun 2026 on public AIS.
What is RETRO's MMSI?
RETRO's MMSI is 261184900. Call sign SR4900.
How big is RETRO?
RETRO is about 67 m long, 8 m on the beam.
Is RETRO on the Master's Mate Safety Initiative Network?
Not yet. If RETRO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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