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
Basel S4
MMSI 312972000
Not yet on Master's MateFlag
BLZLength
104 m
IMO
8913071
AIS reports
2
Hailing from Belize, Basel S4 is a 104-metre craft. Find her under MMSI 312972000, IMO 8913071. It's free to add Basel S4 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card
Is Basel S4 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
Wherever Basel S4 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Basel S4 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 Basel S4 and switch it all on
Free to join · nothing to install to start · cancel anytime
About Basel S4
What kind of vessel is Basel S4?
Basel S4 is a vessel flagged to Belize.
What is Basel S4's MMSI?
Basel S4's MMSI is 312972000. IMO 8913071.
How big is Basel S4?
Basel S4 is about 104 m long.
Is Basel S4 on the Master's Mate Safety Initiative Network?
Not yet. If Basel S4 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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