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

Julius Oldendorff

MMSI 255806200

Not yet on Master's Mate

Flag

PRT

Length

199.9 m

IMO

9839818

AIS reports

Registered in Portugal, Julius Oldendorff is a 199.9-metre craft. Find her under MMSI 255806200, IMO 9839818. Julius Oldendorff belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

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Is Julius Oldendorff 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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Wherever Julius Oldendorff 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 Julius Oldendorff 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 Julius Oldendorff and switch it all on

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About Julius Oldendorff

What kind of vessel is Julius Oldendorff?

Julius Oldendorff is a vessel flagged to Portugal.

What is Julius Oldendorff's MMSI?

Julius Oldendorff's MMSI is 255806200. IMO 9839818.

How big is Julius Oldendorff?

Julius Oldendorff is about 199.9 m long.

Is Julius Oldendorff on the Master's Mate Safety Initiative Network?

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