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

5YEONSOOHO

last seen 35°N 130°E · Jun 2026 · MMSI 440412520

Not yet on Master's Mate

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

5YEONSOOHO is a vessel. She's listed under MMSI 440412520. It's free to add 5YEONSOOHO to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.

Photos of 5YEONSOOHO

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Is 5YEONSOOHO 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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Live AIS position · Jun 16, 2026 13:35 UTC

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Position

35.3061° N, 129.9295° E

Speed

0.9 kn

Course

335°

Crossing the Sea of Japan? 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 5YEONSOOHO 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 5YEONSOOHO

What kind of vessel is 5YEONSOOHO?

5YEONSOOHO is a vessel.

Where was 5YEONSOOHO last seen?

5YEONSOOHO was last reported in the Sea of Japan in Jun 2026 on public AIS.

What is 5YEONSOOHO's MMSI?

5YEONSOOHO's MMSI is 440412520.

Is 5YEONSOOHO on the Master's Mate Safety Initiative Network?

Not yet. If 5YEONSOOHO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).