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.

Towing Vessel

ISABELLE

MMSI 368282680 · Call sign WDN4623

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

36.7 m

Beam

11 m

Draft

5.8 m

Call sign

WDN4623

IMO

7729502

Official No.

595553

AIS reports

ISABELLE flies the American flag — a 36.7-metre workboat. She carries 11 metres in the beam and a 5.8 m draft. On the registers she's MMSI 368282680, call sign WDN4623, IMO 7729502. ISABELLE is welcome on the Master's Mate Safety Initiative Network — a free, community-run watch where boats look out for one another.

Free forever · No credit card · for working boats

Built for boats that work — like ISABELLE.

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 ISABELLE 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 ISABELLE 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 ISABELLE and switch it all on

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

Claim free → unlock everything

About ISABELLE

What kind of vessel is ISABELLE?

ISABELLE is a Towing Vessel flagged to United States of America.

What is ISABELLE's MMSI?

ISABELLE's MMSI is 368282680. Call sign WDN4623. IMO 7729502.

How big is ISABELLE?

ISABELLE is about 36.7 m long, 11 m on the beam, drawing 5.8 m.

Is ISABELLE on the Master's Mate Safety Initiative Network?

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