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.
Tug
KORYO103
MMSI 440104360 · Call sign 010797
Not yet on Master's MateType
Tug
Flag
KORCall sign
010797
IMO
10797
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
KORYO103 is a working tug listed on the South Korea registry. Find her under MMSI 440104360, call sign 010797. Claim KORYO103 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card · for working boats
Built for boats that work — like KORYO103.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
34.9912° N, 128.8698° E
Working 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 boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put KORYO103 on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
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 KORYO103 and switch it all on
Free to join · nothing to install to start · cancel anytime
About KORYO103
What kind of vessel is KORYO103?
KORYO103 is a Tug flagged to South Korea.
Where was KORYO103 last seen?
KORYO103 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is KORYO103's MMSI?
KORYO103's MMSI is 440104360. Call sign 010797. IMO 10797.
Is KORYO103 on the Master's Mate Safety Initiative Network?
Not yet. If KORYO103 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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