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
TB ASP 166
MMSI 525110423 · Call sign YDD3540
Not yet on Master's MateType
Tug
Flag
IDNLength
26 m
Beam
8 m
Draft
25.5 m
Call sign
YDD3540
IMO
1168744
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
51
Registered in Indonesia, TB ASP 166 is a 26-metre tug. Below, she has a 8-metre beam and a draft measuring 25.5 metres. On AIS she shows as MMSI 525110423, call sign YDD3540, IMO 1168744. TB ASP 166 can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working boats
Built for boats that work — like TB ASP 166.
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
6.1060° S, 106.9564° E
Wherever TB ASP 166 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 TB ASP 166 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 TB ASP 166 and switch it all on
Free to join · nothing to install to start · cancel anytime
About TB ASP 166
What kind of vessel is TB ASP 166?
TB ASP 166 is a Tug flagged to Indonesia.
Where was TB ASP 166 last seen?
TB ASP 166 was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is TB ASP 166's MMSI?
TB ASP 166's MMSI is 525110423. Call sign YDD3540. IMO 1168744.
How big is TB ASP 166?
TB ASP 166 is about 26 m long, 8 m on the beam, drawing 25.5 m.
Is TB ASP 166 on the Master's Mate Safety Initiative Network?
Not yet. If TB ASP 166 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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