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
GUO SI
MMSI 477995827 · Call sign VRQN9
Not yet on Master's MateType
Tanker
Flag
HKGLength
65 m
Beam
15 m
Draft
4.2 m
Call sign
VRQN9
IMO
9820594
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87
Registered in Hong Kong, GUO SI is a 65-metre tank ship. Below, she has a 15 m beam and a draft of 4.2 m. She's on record as MMSI 477995827, call sign VRQN9, IMO 9820594. Add GUO SI 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 GUO SI, 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 10:07 UTC
Position
22.3685° N, 114.1010° E
Status
At anchor
Speed
0.0 kn
Course
66°
Destination
TWB
ETA
06-08 17:10 UTC
Transiting the South China Sea? 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 · for commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put GUO SI 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 GUO SI and switch it all on
Free to join · nothing to install to start · cancel anytime
About GUO SI
What kind of vessel is GUO SI?
GUO SI is a Tanker flagged to Hong Kong S.A.R..
Where was GUO SI last seen?
GUO SI was last reported in the South China Sea in Jun 2026 on public AIS.
What is GUO SI's MMSI?
GUO SI's MMSI is 477995827. Call sign VRQN9. IMO 9820594.
How big is GUO SI?
GUO SI is about 65 m long, 15 m on the beam, drawing 4.2 m.
Is GUO SI on the Master's Mate Safety Initiative Network?
Not yet. If GUO SI is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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