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

Kyokuhou Maru

MMSI 431100931

Not yet on Master's Mate

Flag

JPN

Length

104 m

IMO

9242144

AIS reports

Kyokuhou Maru, a craft wearing Japanese colours, measures 104 metres on deck. She's listed under MMSI 431100931, IMO 9242144. Kyokuhou Maru is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

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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 Kyokuhou Maru 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 Kyokuhou Maru 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.

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About Kyokuhou Maru

What kind of vessel is Kyokuhou Maru?

Kyokuhou Maru is a vessel flagged to Japan.

What is Kyokuhou Maru's MMSI?

Kyokuhou Maru's MMSI is 431100931. IMO 9242144.

How big is Kyokuhou Maru?

Kyokuhou Maru is about 104 m long.

Is Kyokuhou Maru on the Master's Mate Safety Initiative Network?

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