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
MITRA SEJAHTERA I
MMSI 525701240 · Call sign YD6418
Not yet on Master's MateType
Tug
Flag
IDNCall sign
YD6418
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
52
MITRA SEJAHTERA I is an Indonesian working tug. On AIS she shows as MMSI 525701240, call sign YD6418. Working vessels like MITRA SEJAHTERA I are never truly alone on the Master's Mate Safety Initiative Network — free, with a fleet on watch.
Free forever · No credit card · for working boats
Built for boats that work — like MITRA SEJAHTERA I.
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 4, 2026
Position
6.1109° S, 106.8703° E
Wherever MITRA SEJAHTERA I 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 MITRA SEJAHTERA I 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 MITRA SEJAHTERA I and switch it all on
Free to join · nothing to install to start · cancel anytime
About MITRA SEJAHTERA I
What kind of vessel is MITRA SEJAHTERA I?
MITRA SEJAHTERA I is a Tug flagged to Indonesia.
Where was MITRA SEJAHTERA I last seen?
MITRA SEJAHTERA I was last reported in around 6°S 107°E in Jun 2026 on public AIS.
What is MITRA SEJAHTERA I's MMSI?
MITRA SEJAHTERA I's MMSI is 525701240. Call sign YD6418.
Is MITRA SEJAHTERA I on the Master's Mate Safety Initiative Network?
Not yet. If MITRA SEJAHTERA I is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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