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.

Offshore Supply Vessel

Mr. Alex

MMSI 367341340 · Call sign WDE3593

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

37.7 m

Beam

10.4 m

Draft

3.8 m

Call sign

WDE3593

Official No.

1199276

AIS reports

On the American registry, Mr. Alex is a 37.7-metre utility boat. She carries 10.4 metres in the beam and a 3.8-metre draft. Find her under MMSI 367341340, call sign WDE3593. Bring Mr. Alex aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

Free forever · No credit card · for working boats

Built for boats that work — like Mr. Alex.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

Rig her out — free →

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

Wherever Mr. Alex 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 working boats

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

Joining the Safety Initiative Network doesn't just put Mr. Alex on the map. It hands you the full bridge:

Systems Monitoring

Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.

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.

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

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.

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 Mr. Alex and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About Mr. Alex

What kind of vessel is Mr. Alex?

Mr. Alex is a Offshore Supply Vessel flagged to United States of America.

What is Mr. Alex's MMSI?

Mr. Alex's MMSI is 367341340. Call sign WDE3593.

How big is Mr. Alex?

Mr. Alex is about 37.7 m long, 10.4 m on the beam, drawing 3.8 m.

Is Mr. Alex on the Master's Mate Safety Initiative Network?

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