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
NO.312 DAE RYONG
MMSI 440000200 · Call sign 980446
Not yet on Master's MateType
Tug
Flag
KORLength
30 m
Beam
9 m
Draft
3.8 m
Call sign
980446
IMO
9204788
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
85
NO.312 DAE RYONG is a South Korean harbour tug — 30 metres overall. Her hull carries a 9 m beam and a draft of 3.8 m. Find her under MMSI 440000200, call sign 980446, IMO 9204788. Give NO.312 DAE RYONG the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for working boats
Built for boats that work — like NO.312 DAE RYONG.
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 10, 2026 00:17 UTC
Position
35.0890° N, 129.0334° E
Status
Under way (engine)
Speed
0.0 kn
Course
163°
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 NO.312 DAE RYONG 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 NO.312 DAE RYONG and switch it all on
Free to join · nothing to install to start · cancel anytime
About NO.312 DAE RYONG
What kind of vessel is NO.312 DAE RYONG?
NO.312 DAE RYONG is a Tug flagged to South Korea.
Where was NO.312 DAE RYONG last seen?
NO.312 DAE RYONG was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is NO.312 DAE RYONG's MMSI?
NO.312 DAE RYONG's MMSI is 440000200. Call sign 980446. IMO 9204788.
How big is NO.312 DAE RYONG?
NO.312 DAE RYONG is about 30 m long, 9 m on the beam, drawing 3.8 m.
Is NO.312 DAE RYONG on the Master's Mate Safety Initiative Network?
Not yet. If NO.312 DAE RYONG 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.