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
Dl Ruby
MMSI 440072080
Not yet on Master's MateFlag
KORLength
119.5 m
IMO
9403267
AIS reports
2
Dl Ruby flies the South Korean flag — an 119.5-metre craft. On AIS she appears as MMSI 440072080, IMO 9403267. Join Dl Ruby to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Free forever · No credit card
Is Dl Ruby 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 05:26 UTC
Position
35.0951° N, 129.0700° E
Status
Moored
Speed
0.0 kn
Course
40°
Destination
PUS,KR
ETA
06-07 06:30 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.
Free with your claim
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Dl Ruby 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 Dl Ruby and switch it all on
Free to join · nothing to install to start · cancel anytime
About Dl Ruby
What kind of vessel is Dl Ruby?
Dl Ruby is a vessel flagged to South Korea.
Where was Dl Ruby last seen?
Dl Ruby was last reported in the Sea of Japan on public AIS.
What is Dl Ruby's MMSI?
Dl Ruby's MMSI is 440072080. IMO 9403267.
How big is Dl Ruby?
Dl Ruby is about 119.5 m long.
Is Dl Ruby on the Master's Mate Safety Initiative Network?
Not yet. If Dl Ruby is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.