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.
Cargo
SERENITY 198
MMSI 525901553 · Call sign YDDC4
Not yet on Master's MateType
Cargo
Flag
IDNLength
64 m
Beam
17 m
Draft
1.5 m
Call sign
YDDC4
IMO
1108366
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
49
SERENITY 198 is an Indonesian cargo carrier, 64 metres from stem to stern. SERENITY 198 has a beam measuring 17 metres and a 1.5-metre draft. On AIS she shows as MMSI 525901553, call sign YDDC4, IMO 1108366. SERENITY 198 is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.
Free forever · No credit card · for commercial operators
Eyes on SERENITY 198, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
6.1207° S, 106.8123° E
Wherever SERENITY 198 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SERENITY 198 on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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 SERENITY 198 and switch it all on
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About SERENITY 198
What kind of vessel is SERENITY 198?
SERENITY 198 is a Cargo flagged to Indonesia.
Where was SERENITY 198 last seen?
SERENITY 198 was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is SERENITY 198's MMSI?
SERENITY 198's MMSI is 525901553. Call sign YDDC4. IMO 1108366.
How big is SERENITY 198?
SERENITY 198 is about 64 m long, 17 m on the beam, drawing 1.5 m.
Is SERENITY 198 on the Master's Mate Safety Initiative Network?
Not yet. If SERENITY 198 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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