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
Ren Jian 20
MMSI 414334000
Not yet on Master's MateFlag
CHNLength
247.2 m
IMO
9464699
AIS reports
2
On the Chinese registry, Ren Jian 20 is a 247.2-metre vessel. She's on record as MMSI 414334000, IMO 9464699. Ren Jian 20 is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is Ren Jian 20 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
Live AIS position · Jun 9, 2026 23:04 UTC
Position
34.9823° N, 128.8149° E
Status
Under way (engine)
Speed
9.6 kn
Course
337°
Destination
BUSAN
ETA
06-09 22:00 UTC
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 Ren Jian 20 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 Ren Jian 20 and switch it all on
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About Ren Jian 20
What kind of vessel is Ren Jian 20?
Ren Jian 20 is a vessel flagged to China.
Where was Ren Jian 20 last seen?
Ren Jian 20 was last reported in the Sea of Japan on public AIS.
What is Ren Jian 20's MMSI?
Ren Jian 20's MMSI is 414334000. IMO 9464699.
How big is Ren Jian 20?
Ren Jian 20 is about 247.2 m long.
Is Ren Jian 20 on the Master's Mate Safety Initiative Network?
Not yet. If Ren Jian 20 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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