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Offshore Supply Vessel
JUAN C
MMSI 338896000 · Call sign WDN4581
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
91 m
Beam
18 m
Draft
4 m
Call sign
WDN4581
IMO
9670365
Official No.
1025598
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
91
Registered in the United States, JUAN C is a 91-metre work boat. Below, she has a 18 m beam and a draft measuring 4 metres. On AIS she shows as MMSI 338896000, call sign WDN4581, IMO 9670365. Join JUAN C to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Built for boats that work — like JUAN C.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
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Live AIS position · Jun 9, 2026 14:50 UTC
Position
22.8477° S, 43.1389° W
Status
At anchor
Speed
0.0 kn
Course
277°
Destination
BAIA DE GUANABARA
ETA
11-15 07:35 UTC
Wherever JUAN C roams, you're never out there alone.
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Joining the Safety Initiative Network doesn't just put JUAN C on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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 JUAN C
What kind of vessel is JUAN C?
JUAN C is a Offshore Supply Vessel flagged to United States of America.
Where was JUAN C last seen?
JUAN C was last reported in around 23°S 43°W in Jun 2026 on public AIS.
What is JUAN C's MMSI?
JUAN C's MMSI is 338896000. Call sign WDN4581. IMO 9670365.
How big is JUAN C?
JUAN C is about 91 m long, 18 m on the beam, drawing 4 m.
Is JUAN C on the Master's Mate Safety Initiative Network?
Not yet. If JUAN C is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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