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
203KWANGJIN
Tug · last seen 35°N 129°E · Jun 2026 · MMSI 440311130 · Call sign 876908
Not yet on Master's MateType
Tug
Call sign
876908
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
203KWANGJIN is a working tug. On AIS she appears as MMSI 440311130, call sign 876908. Put 203KWANGJIN on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for working boats
Built for boats that work — like 203KWANGJIN.
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
Live AIS position · Jun 15, 2026 17:02 UTC
Position
35.0949° N, 129.0381° E
Speed
0.0 kn
Course
342°
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 203KWANGJIN 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 203KWANGJIN and switch it all on
Free to join · nothing to install to start · cancel anytime
About 203KWANGJIN
What kind of vessel is 203KWANGJIN?
203KWANGJIN is a Tug.
Where was 203KWANGJIN last seen?
203KWANGJIN was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is 203KWANGJIN's MMSI?
203KWANGJIN's MMSI is 440311130. Call sign 876908.
Is 203KWANGJIN on the Master's Mate Safety Initiative Network?
Not yet. If 203KWANGJIN 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.