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
MLSA 80
MMSI 525901084 · Call sign YDD3121
Not yet on Master's MateType
Tug
Flag
IDNLength
27 m
Beam
8 m
Draft
3 m
Call sign
YDD3121
IMO
1113373
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
62
On the Indonesian registry, MLSA 80 is a 27-metre tug. She has 8 metres in the beam and a draft measuring 3 metres. Find her under MMSI 525901084, call sign YDD3121, IMO 1113373. Bring MLSA 80 aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.
Free forever · No credit card · for working boats
Built for boats that work — like MLSA 80.
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
6.0737° S, 106.8800° E
Wherever MLSA 80 roams, 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 MLSA 80 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 MLSA 80 and switch it all on
Free to join · nothing to install to start · cancel anytime
About MLSA 80
What kind of vessel is MLSA 80?
MLSA 80 is a Tug flagged to Indonesia.
Where was MLSA 80 last seen?
MLSA 80 was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is MLSA 80's MMSI?
MLSA 80's MMSI is 525901084. Call sign YDD3121. IMO 1113373.
How big is MLSA 80?
MLSA 80 is about 27 m long, 8 m on the beam, drawing 3 m.
Is MLSA 80 on the Master's Mate Safety Initiative Network?
Not yet. If MLSA 80 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.