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.

Unclassified

Sea Guardian

MMSI 368146960 · Call sign WDL6055

Not yet on Master's Mate

Type

Unclassified

Flag

USA

Length

14 m

Beam

4.9 m

Draft

2.7 m

Call sign

WDL6055

Official No.

1186158

Hull ID

NWN46161J505

AIS reports

Sea Guardian, an American craft, measures 14 metres on deck. Her hull carries a beam measuring 4.9 metres and a draft measuring 2.7 metres. She's listed under MMSI 368146960, call sign WDL6055. Sign Sea Guardian up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

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Is Sea Guardian 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 Sea Guardian 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 Sea Guardian 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 Sea Guardian and switch it all on

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About Sea Guardian

What kind of vessel is Sea Guardian?

Sea Guardian is a Unclassified flagged to United States of America.

What is Sea Guardian's MMSI?

Sea Guardian's MMSI is 368146960. Call sign WDL6055.

How big is Sea Guardian?

Sea Guardian is about 14 m long, 4.9 m on the beam, drawing 2.7 m.

Is Sea Guardian on the Master's Mate Safety Initiative Network?

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