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.
Cargo
DONGSHAN 55
MMSI 413250840 · Call sign BOLG7
Not yet on Master's MateType
Cargo
Flag
CHNLength
138 m
Beam
26 m
Draft
6.2 m
Call sign
BOLG7
IMO
9792345
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
44
Registered in China, DONGSHAN 55 is a 138-metre cargo vessel. DONGSHAN 55 has 26 metres in the beam and a 6.2-metre draft. She's listed under MMSI 413250840, call sign BOLG7, IMO 9792345. Put DONGSHAN 55 on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for commercial operators
Eyes on DONGSHAN 55, 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
Last known position · Jun 3, 2026
Position
25.1569° N, 121.3855° E
Transiting the East 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 DONGSHAN 55 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 DONGSHAN 55 and switch it all on
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About DONGSHAN 55
What kind of vessel is DONGSHAN 55?
DONGSHAN 55 is a Cargo flagged to China.
Where was DONGSHAN 55 last seen?
DONGSHAN 55 was last reported in the East China Sea in Jun 2026 on public AIS.
What is DONGSHAN 55's MMSI?
DONGSHAN 55's MMSI is 413250840. Call sign BOLG7. IMO 9792345.
How big is DONGSHAN 55?
DONGSHAN 55 is about 138 m long, 26 m on the beam, drawing 6.2 m.
Is DONGSHAN 55 on the Master's Mate Safety Initiative Network?
Not yet. If DONGSHAN 55 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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