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.
Recreational
O-E-X
MMSI 367165990 · Call sign WDD5938
Not yet on Master's MateType
Recreational
Flag
USALength
20.7 m
Beam
4.6 m
Draft
3 m
Call sign
WDD5938
Official No.
930490
Hull ID
LET70009A788
AIS reports
1
An American weekend cruiser, O-E-X measures 20.7 metres. Below, she has a 4.6-metre beam and a draft measuring 3 metres. Her registration reads MMSI 367165990, call sign WDD5938. Add O-E-X to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
Free forever · No credit card · for recreational captains
Keep O-E-X looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever O-E-X 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 recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put O-E-X on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim O-E-X and switch it all on
Free to join · nothing to install to start · cancel anytime
About O-E-X
What kind of vessel is O-E-X?
O-E-X is a Recreational flagged to United States of America.
What is O-E-X's MMSI?
O-E-X's MMSI is 367165990. Call sign WDD5938.
How big is O-E-X?
O-E-X is about 20.7 m long, 4.6 m on the beam, drawing 3 m.
Is O-E-X on the Master's Mate Safety Initiative Network?
Not yet. If O-E-X is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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