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.
Tanker
RUBY OCEAN HO
MMSI 440197000 · Call sign 224816
Not yet on Master's MateType
Tanker
Flag
KORLength
70 m
Beam
17 m
Draft
1.5 m
Call sign
224816
IMO
9401453
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
29
RUBY OCEAN HO, a tank ship registered in South Korea, measures 70 metres on deck. She's built with 17 metres in the beam and a 1.5-metre draft. Her papers read MMSI 440197000, call sign 224816, IMO 9401453. Add RUBY OCEAN HO to the Master's Mate Safety Initiative Network and share the water with a fleet that's paying attention — free.
Free forever · No credit card · for commercial operators
Eyes on RUBY OCEAN HO, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 00:52 UTC
Position
34.9196° N, 128.9767° E
Status
Moored
Speed
10.1 kn
Course
230°
Destination
>KR BUSAN
ETA
09-01 07:00 UTC
Transiting 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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Joining the Safety Initiative Network doesn't just put RUBY OCEAN HO on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim RUBY OCEAN HO and switch it all on
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About RUBY OCEAN HO
What kind of vessel is RUBY OCEAN HO?
RUBY OCEAN HO is a Tanker flagged to South Korea.
Where was RUBY OCEAN HO last seen?
RUBY OCEAN HO was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is RUBY OCEAN HO's MMSI?
RUBY OCEAN HO's MMSI is 440197000. Call sign 224816. IMO 9401453.
How big is RUBY OCEAN HO?
RUBY OCEAN HO is about 70 m long, 17 m on the beam, drawing 1.5 m.
Is RUBY OCEAN HO on the Master's Mate Safety Initiative Network?
Not yet. If RUBY OCEAN HO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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