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
SM TOKYO
MMSI 440059000 · Call sign D7DO
Not yet on Master's MateType
Cargo
Flag
KORLength
148 m
Beam
23 m
Draft
7.4 m
Call sign
D7DO
IMO
9374129
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
7
SM TOKYO, a freighter under the South Korean flag, measures 148 metres on deck. Below, she has a 23-metre beam and a draft of 7.4 m. On AIS she appears as MMSI 440059000, call sign D7DO, IMO 9374129. Add SM TOKYO to the Master's Mate Safety Initiative Network and share the water with a fleet that's paying attention — free.
Free forever · No credit card · for commercial operators
Eyes on SM TOKYO, 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 2, 2026
Position
26.8626° N, 121.4512° E
Transiting the East China 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 SM TOKYO 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 SM TOKYO and switch it all on
Free to join · nothing to install to start · cancel anytime
About SM TOKYO
What kind of vessel is SM TOKYO?
SM TOKYO is a Cargo flagged to South Korea.
Where was SM TOKYO last seen?
SM TOKYO was last reported in the East China Sea in Jun 2026 on public AIS.
What is SM TOKYO's MMSI?
SM TOKYO's MMSI is 440059000. Call sign D7DO. IMO 9374129.
How big is SM TOKYO?
SM TOKYO is about 148 m long, 23 m on the beam, drawing 7.4 m.
Is SM TOKYO on the Master's Mate Safety Initiative Network?
Not yet. If SM TOKYO is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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