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
THEMIS LEADER
MMSI 431747000 · Call sign 7KCT
Not yet on Master's MateType
Cargo
Flag
JPNLength
200 m
Beam
32 m
Draft
8 m
Call sign
7KCT
IMO
9553115
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
30
THEMIS LEADER is a Japanese merchant vessel, measuring 200 metres. She carries a 32-metre beam and a 8 m draft. On AIS she shows as MMSI 431747000, call sign 7KCT, IMO 9553115. THEMIS LEADER belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for commercial operators
Eyes on THEMIS LEADER, 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 4, 2026
Position
37.7974° N, 141.7334° E
Transiting the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put THEMIS LEADER 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 THEMIS LEADER and switch it all on
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About THEMIS LEADER
What kind of vessel is THEMIS LEADER?
THEMIS LEADER is a Cargo flagged to Japan.
Where was THEMIS LEADER last seen?
THEMIS LEADER was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is THEMIS LEADER's MMSI?
THEMIS LEADER's MMSI is 431747000. Call sign 7KCT. IMO 9553115.
How big is THEMIS LEADER?
THEMIS LEADER is about 200 m long, 32 m on the beam, drawing 8 m.
Is THEMIS LEADER on the Master's Mate Safety Initiative Network?
Not yet. If THEMIS LEADER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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