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

Ioannis Theo

MMSI 538003670

Not yet on Master's Mate

Flag

MHL

Length

189 m

IMO

9565170

AIS reports

On the Marshall Islands registry, Ioannis Theo is an 189-metre vessel. She's on record as MMSI 538003670, IMO 9565170. Give Ioannis Theo the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

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Is Ioannis Theo 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 Ioannis Theo 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 Ioannis Theo 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 Ioannis Theo and switch it all on

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About Ioannis Theo

What kind of vessel is Ioannis Theo?

Ioannis Theo is a vessel flagged to Marshall Islands.

What is Ioannis Theo's MMSI?

Ioannis Theo's MMSI is 538003670. IMO 9565170.

How big is Ioannis Theo?

Ioannis Theo is about 189 m long.

Is Ioannis Theo on the Master's Mate Safety Initiative Network?

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