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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.
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MAERSK LEADER

MMSI 220577000 · Call sign OUHD2

Not yet on Master's Mate
Type
Other
Flag
DNKDNK
Length
90 m
Beam
23 m
Draft
6.4 m
Call sign
OUHD2
IMO
9425710
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
87

MAERSK LEADER is a Danish 90-metre vessel. Her hull carries a beam of 23 m and a draft of 6.4 m. On AIS she shows as MMSI 220577000, call sign OUHD2, IMO 9425710. Join MAERSK LEADER to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

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Live AIS position · Jun 9, 2026 23:05 UTC
Position
22.8381° S, 43.1482° W
Status
At anchor
Speed
0.0 kn
Course
223°
Destination
RIO_DE JANEIRO
ETA
04-18 06:00 UTC
Wherever MAERSK LEADER roams, you're never out there alone.
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Joining the Safety Initiative Network doesn't just put MAERSK LEADER on the map. It hands you the full bridge:

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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
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.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
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About MAERSK LEADER

What kind of vessel is MAERSK LEADER?
MAERSK LEADER is a Other flagged to Denmark.
Where was MAERSK LEADER last seen?
MAERSK LEADER was last reported in around 23°S 43°W in Jun 2026 on public AIS.
What is MAERSK LEADER's MMSI?
MAERSK LEADER's MMSI is 220577000. Call sign OUHD2. IMO 9425710.
How big is MAERSK LEADER?
MAERSK LEADER is about 90 m long, 23 m on the beam, drawing 6.4 m.
Is MAERSK LEADER on the Master's Mate Safety Initiative Network?
Not yet. If MAERSK LEADER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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