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
DISCOVERY
MMSI 461000239 · Call sign A4DR6
Not yet on Master's MateType
Tanker
Flag
OMNLength
280 m
Beam
50 m
Draft
9.2 m
Call sign
A4DR6
IMO
9316127
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
8
DISCOVERY is a 280-metre tanker flying the flag of Oman. She's built with a beam measuring 50 metres and a 9.2-metre draft. Find her under MMSI 461000239, call sign A4DR6, IMO 9316127. Big or small, every hull benefits from the free Master's Mate Safety Initiative Network — DISCOVERY included.
Free forever · No credit card · for commercial operators
Eyes on DISCOVERY, 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 8, 2026 23:16 UTC
Position
54.5850° N, 12.3053° E
Status
Under way (engine)
Speed
9.6 kn
Course
50°
Destination
FOR ORDERS
ETA
06-12 12:00 UTC
Transiting the Baltic 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 DISCOVERY 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 DISCOVERY and switch it all on
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About DISCOVERY
What kind of vessel is DISCOVERY?
DISCOVERY is a Tanker flagged to Oman.
Where was DISCOVERY last seen?
DISCOVERY was last reported in the Baltic Sea in Jun 2026 on public AIS.
What is DISCOVERY's MMSI?
DISCOVERY's MMSI is 461000239. Call sign A4DR6. IMO 9316127.
How big is DISCOVERY?
DISCOVERY is about 280 m long, 50 m on the beam, drawing 9.2 m.
Is DISCOVERY on the Master's Mate Safety Initiative Network?
Not yet. If DISCOVERY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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