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
CASTOR
MMSI 563273100 · Call sign 9VMO5
Not yet on Master's MateType
Tanker
Flag
SGPLength
140 m
Beam
20 m
Draft
5.8 m
Call sign
9VMO5
IMO
9812420
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
63
CASTOR is a tank vessel flying the flag of Singapore, 140 metres from stem to stern. She carries a beam measuring 20 metres and a 5.8-metre draft. On AIS she appears as MMSI 563273100, call sign 9VMO5, IMO 9812420. Claim CASTOR free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for commercial operators
Eyes on CASTOR, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
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Last known position · Jun 4, 2026
Position
1.2194° N, 103.8261° E
Transiting the Strait of Malacca? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put CASTOR 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 CASTOR and switch it all on
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About CASTOR
What kind of vessel is CASTOR?
CASTOR is a Tanker flagged to Singapore.
Where was CASTOR last seen?
CASTOR was last reported in the Strait of Malacca in Jun 2026 on public AIS.
What is CASTOR's MMSI?
CASTOR's MMSI is 563273100. Call sign 9VMO5. IMO 9812420.
How big is CASTOR?
CASTOR is about 140 m long, 20 m on the beam, drawing 5.8 m.
Is CASTOR on the Master's Mate Safety Initiative Network?
Not yet. If CASTOR is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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