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

Urizun 21

MMSI 431011184

Not yet on Master's Mate

Flag

JPN

Length

141.8 m

IMO

9832535

AIS reports

Urizun 21 is a Japanese craft — 141.8 metres overall. On AIS she appears as MMSI 431011184, IMO 9832535. Bring Urizun 21 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

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Is Urizun 21 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.

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Wherever Urizun 21 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 Urizun 21 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 Urizun 21 and switch it all on

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About Urizun 21

What kind of vessel is Urizun 21?

Urizun 21 is a vessel flagged to Japan.

What is Urizun 21's MMSI?

Urizun 21's MMSI is 431011184. IMO 9832535.

How big is Urizun 21?

Urizun 21 is about 141.8 m long.

Is Urizun 21 on the Master's Mate Safety Initiative Network?

Not yet. If Urizun 21 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).