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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

JNS RIVER

MMSI 477019500 · Call sign VRWI4

Not yet on Master's Mate
Type
Cargo
Flag
HKGHKG
Length
179 m
Beam
30 m
Draft
7 m
Call sign
VRWI4
IMO
1045227
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
8

JNS RIVER, a cargo vessel wearing Hong Kong colours, measures 179 metres on deck. She's built with a beam measuring 30 metres and a 7-metre draft. She's listed under MMSI 477019500, call sign VRWI4, IMO 1045227. Claim JNS RIVER free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

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Joining the Safety Initiative Network doesn't just put JNS RIVER 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.
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About JNS RIVER

What kind of vessel is JNS RIVER?
JNS RIVER is a Cargo flagged to Hong Kong S.A.R..
What is JNS RIVER's MMSI?
JNS RIVER's MMSI is 477019500. Call sign VRWI4. IMO 1045227.
How big is JNS RIVER?
JNS RIVER is about 179 m long, 30 m on the beam, drawing 7 m.
Is JNS RIVER on the Master's Mate Safety Initiative Network?
Not yet. If JNS RIVER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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