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

William Jeffrey Bayer

MMSI 368059390 · Call sign WDK4868

Not yet on Master's Mate

Flag

USA

Call sign

WDK4868

Official No.

632444

AIS reports

William Jeffrey Bayer is an American boat. She's listed under MMSI 368059390, call sign WDK4868. Put William Jeffrey Bayer on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.

Free forever · No credit card

Is William Jeffrey Bayer 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 William Jeffrey Bayer 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 William Jeffrey Bayer 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 William Jeffrey Bayer and switch it all on

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About William Jeffrey Bayer

What kind of vessel is William Jeffrey Bayer?

William Jeffrey Bayer is a vessel flagged to United States of America.

What is William Jeffrey Bayer's MMSI?

William Jeffrey Bayer's MMSI is 368059390. Call sign WDK4868.

Is William Jeffrey Bayer on the Master's Mate Safety Initiative Network?

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