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
YU TONG
Tanker · last seen 23°N 114°E · Jun 2026 · MMSI 413291020 · Call sign BOSG5
Not yet on Master's MateType
Tanker
Length
139 m
Beam
19 m
Draft
8 m
Call sign
BOSG5
IMO
9931185
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
YU TONG is a tanker, measuring 139 metres. YU TONG has a 19-metre beam and a 8 m draft. Find her under MMSI 413291020, call sign BOSG5, IMO 9931185. Bring YU TONG aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for commercial operators
Eyes on YU TONG, 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 16, 2026 01:30 UTC
Position
22.5074° N, 113.7446° E
Status
Under way (engine)
Speed
11.3 kn
Course
342°
Destination
DONGGUAN_CHINA
ETA
06-15 21:00 UTC
Transiting the South China Sea? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put YU TONG 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 YU TONG and switch it all on
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About YU TONG
What kind of vessel is YU TONG?
YU TONG is a Tanker.
Where was YU TONG last seen?
YU TONG was last reported in the South China Sea in Jun 2026 on public AIS.
What is YU TONG's MMSI?
YU TONG's MMSI is 413291020. Call sign BOSG5. IMO 9931185.
How big is YU TONG?
YU TONG is about 139 m long, 19 m on the beam, drawing 8 m.
Is YU TONG on the Master's Mate Safety Initiative Network?
Not yet. If YU TONG is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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