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.
Fishing
DOUBLE
MMSI 440600460 · Call sign 310
Not yet on Master's MateType
Fishing
Flag
KORCall sign
310
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
53
DOUBLE flies the South Korean flag — a working fishing boat. Find her under MMSI 440600460, call sign 310. DOUBLE is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for working captains
Know where the fleet is. Get DOUBLE home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
34.9655° N, 128.8627° E
Fishing the Sea of Japan? 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 working captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put DOUBLE 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.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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.
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.
Claim DOUBLE and switch it all on
Free to join · nothing to install to start · cancel anytime
About DOUBLE
What kind of vessel is DOUBLE?
DOUBLE is a Fishing flagged to South Korea.
Where was DOUBLE last seen?
DOUBLE was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is DOUBLE's MMSI?
DOUBLE's MMSI is 440600460. Call sign 310.
Is DOUBLE on the Master's Mate Safety Initiative Network?
Not yet. If DOUBLE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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