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.

Tank Ship

William L. Warner

MMSI 366930160 · Call sign WDB6765

Not yet on Master's Mate

Type

Tank Ship

Flag

USA

Length

36.6 m

Beam

12.2 m

Draft

4.1 m

Call sign

WDB6765

IMO

7322055

Official No.

545832

AIS reports

Registered in the United States, William L. Warner is a 36.6-metre tank vessel. She carries 12.2 metres in the beam and a 4.1 m draft. On AIS she appears as MMSI 366930160, call sign WDB6765, IMO 7322055. Join William L. Warner to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.

Free forever · No credit card · for commercial operators

Eyes on William L. Warner, around the clock.

Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.

Put her on the dashboard — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever William L. Warner 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 · for commercial operators

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put William L. Warner on the map. It hands you the full bridge:

Live AIS & Traffic

See every vessel around you in real time. Closest-approach warnings before they matter.

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.

Worldwide Charts

Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.

Weather & Routing

GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.

Anchor Watch

GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

Claim William L. Warner and switch it all on

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About William L. Warner

What kind of vessel is William L. Warner?

William L. Warner is a Tank Ship flagged to United States of America.

What is William L. Warner's MMSI?

William L. Warner's MMSI is 366930160. Call sign WDB6765. IMO 7322055.

How big is William L. Warner?

William L. Warner is about 36.6 m long, 12.2 m on the beam, drawing 4.1 m.

Is William L. Warner on the Master's Mate Safety Initiative Network?

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