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

Star Sigma

MMSI 538003167

Not yet on Master's Mate

Flag

MHL

Length

290 m

IMO

8918203

AIS reports

Out of the Marshall Islands, Star Sigma is a 290-metre vessel. She's on record as MMSI 538003167, IMO 8918203. Sign Star Sigma up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

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Is Star Sigma 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 Star Sigma 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 Star Sigma 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 Star Sigma and switch it all on

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About Star Sigma

What kind of vessel is Star Sigma?

Star Sigma is a vessel flagged to Marshall Islands.

What is Star Sigma's MMSI?

Star Sigma's MMSI is 538003167. IMO 8918203.

How big is Star Sigma?

Star Sigma is about 290 m long.

Is Star Sigma on the Master's Mate Safety Initiative Network?

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