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
Theresa Ann
MMSI 367307120 · Call sign WDL3346
Not yet on Master's MateType
Towing Vessel
Flag
USALength
17.3 m
Beam
6.7 m
Draft
2.6 m
Call sign
WDL3346
Official No.
558026
AIS reports
3
Theresa Ann is an American work boat, spanning 17.3 metres. Her hull carries 6.7 metres in the beam and a draft measuring 2.6 metres. On AIS she shows as MMSI 367307120, call sign WDL3346. It's free to add Theresa Ann to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working boats
Built for boats that work — like Theresa 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 Theresa 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 Theresa 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 Theresa Ann and switch it all on
Free to join · nothing to install to start · cancel anytime
About Theresa Ann
What kind of vessel is Theresa Ann?
Theresa Ann is a Towing Vessel flagged to United States of America.
What is Theresa Ann's MMSI?
Theresa Ann's MMSI is 367307120. Call sign WDL3346.
How big is Theresa Ann?
Theresa Ann is about 17.3 m long, 6.7 m on the beam, drawing 2.6 m.
Is Theresa Ann on the Master's Mate Safety Initiative Network?
Not yet. If Theresa Ann is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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