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

Carefree 558

MMSI 457153000

Not yet on Master's Mate

Flag

MNG

Length

104 m

IMO

9062685

AIS reports

Carefree 558 is a boat hailing from Mongolia, 104 metres LOA. Officially she's MMSI 457153000, IMO 9062685. Claim Carefree 558 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

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Is Carefree 558 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.

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

Wherever Carefree 558 roams, you're never out there alone.

Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.

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

Joining the Safety Initiative Network doesn't just put Carefree 558 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 Carefree 558 and switch it all on

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About Carefree 558

What kind of vessel is Carefree 558?

Carefree 558 is a vessel flagged to Mongolia.

What is Carefree 558's MMSI?

Carefree 558's MMSI is 457153000. IMO 9062685.

How big is Carefree 558?

Carefree 558 is about 104 m long.

Is Carefree 558 on the Master's Mate Safety Initiative Network?

Not yet. If Carefree 558 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).