Sign up free Dashboard Log out
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

SUNJIN NO.801

MMSI 440313260

Not yet on Master's Mate
Type
Tug
Flag
KORKOR
Draft
4 m
IMO
9535474
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85

SUNJIN NO.801 is a South Korean tug. Her hull carries a draft measuring 4 metres. Officially she's MMSI 440313260, IMO 9535474. Sign SUNJIN NO.801 up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

Free forever · No credit card · for working boats

Built for boats that work — like SUNJIN NO.801.

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 4, 2026
Position
35.1089° N, 129.0663° 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 SUNJIN NO.801 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 SUNJIN NO.801 and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About SUNJIN NO.801

What kind of vessel is SUNJIN NO.801?
SUNJIN NO.801 is a Tug flagged to South Korea.
Where was SUNJIN NO.801 last seen?
SUNJIN NO.801 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is SUNJIN NO.801's MMSI?
SUNJIN NO.801's MMSI is 440313260. IMO 9535474.
Is SUNJIN NO.801 on the Master's Mate Safety Initiative Network?
Not yet. If SUNJIN NO.801 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

© 2026 Master’s Mate. All rights reserved.