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.

Vessel

Estelle Mærsk

MMSI 220478000

Not yet on Master's Mate

Flag

DNK

Length

397 m

IMO

9321495

AIS reports

Estelle Mærsk, a Danish boat, measures 397 metres on deck. Officially she's MMSI 220478000, IMO 9321495. Add Estelle Mærsk to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card

Is Estelle Mærsk your boat?

Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.

Claim this boat — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Estelle Mærsk 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

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Estelle Mærsk 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.

Claim Estelle Mærsk and switch it all on

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Claim free → unlock everything

About Estelle Mærsk

What kind of vessel is Estelle Mærsk?

Estelle Mærsk is a vessel flagged to Denmark.

What is Estelle Mærsk's MMSI?

Estelle Mærsk's MMSI is 220478000. IMO 9321495.

How big is Estelle Mærsk?

Estelle Mærsk is about 397 m long.

Is Estelle Mærsk on the Master's Mate Safety Initiative Network?

Not yet. If Estelle Mærsk is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).