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 Calypso

MMSI 538007661

Not yet on Master's Mate

Flag

MHL

Length

228 m

IMO

9634842

AIS reports

Star Calypso is a Marshall Islands 228-metre craft. Officially she's MMSI 538007661, IMO 9634842. The Master's Mate Safety Initiative Network welcomes Star Calypso — free to join, cruiser-run, and always on watch.

Free forever · No credit card

Is Star Calypso 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 Calypso 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 Star Calypso 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 Calypso and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Star Calypso

What kind of vessel is Star Calypso?

Star Calypso is a vessel flagged to Marshall Islands.

What is Star Calypso's MMSI?

Star Calypso's MMSI is 538007661. IMO 9634842.

How big is Star Calypso?

Star Calypso is about 228 m long.

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

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