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.
Passenger (Inspected)
DEE-O
U.S. Official No. 544456
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
14.8 m
Beam
4.4 m
Draft
1.7 m
First reported
Jun 2026
AIS reports
1
DEE-O is a passenger boat under American registration, measuring 14.8 metres. DEE-O has a 4.4-metre beam and a 1.7 m draft. Her registration reads U.S. official number 544456. Put DEE-O on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard DEE-O safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever DEE-O 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put DEE-O on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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.
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.
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 DEE-O and switch it all on
Free to join · nothing to install to start · cancel anytime
About DEE-O
What kind of vessel is DEE-O?
DEE-O is a Passenger (Inspected) flagged to United States of America.
What is DEE-O's U.S. Official No.?
DEE-O's U.S. Official No. is 544456.
How big is DEE-O?
DEE-O is about 14.8 m long, 4.4 m on the beam, drawing 1.7 m.
Is DEE-O on the Master's Mate Safety Initiative Network?
Not yet. If DEE-O is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.