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
DOROTHY ANN
MMSI 366768740 · Call sign WCZ3736
Not yet on Master's MateType
Towing Vessel
Flag
USALength
36.3 m
Beam
13.4 m
Draft
7.3 m
Call sign
WCZ3736
IMO
8955732
Official No.
1081409
AIS reports
1
Registered in the United States, DOROTHY ANN is a 36.3-metre service vessel. She's built with a beam of 13.4 m and a 7.3 m draft. On AIS she shows as MMSI 366768740, call sign WCZ3736, IMO 8955732. DOROTHY ANN can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working boats
Built for boats that work — like DOROTHY ANN.
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 DOROTHY ANN 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 DOROTHY ANN 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 DOROTHY ANN and switch it all on
Free to join · nothing to install to start · cancel anytime
About DOROTHY ANN
What kind of vessel is DOROTHY ANN?
DOROTHY ANN is a Towing Vessel flagged to United States of America.
What is DOROTHY ANN's MMSI?
DOROTHY ANN's MMSI is 366768740. Call sign WCZ3736. IMO 8955732.
How big is DOROTHY ANN?
DOROTHY ANN is about 36.3 m long, 13.4 m on the beam, drawing 7.3 m.
Is DOROTHY ANN on the Master's Mate Safety Initiative Network?
Not yet. If DOROTHY ANN is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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