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.
Vessel
Catalina Jack
MMSI 367645850 · Call sign WDN9936
Not yet on Master's MateFlag
USACall sign
WDN9936
Official No.
FL6952TM
AIS reports
2
Catalina Jack is an American craft. On AIS she appears as MMSI 367645850, call sign WDN9936. Sign Catalina Jack up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card
Is Catalina Jack your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Catalina Jack 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
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Catalina Jack 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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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 Catalina Jack and switch it all on
Free to join · nothing to install to start · cancel anytime
About Catalina Jack
What kind of vessel is Catalina Jack?
Catalina Jack is a vessel flagged to United States of America.
What is Catalina Jack's MMSI?
Catalina Jack's MMSI is 367645850. Call sign WDN9936.
Is Catalina Jack on the Master's Mate Safety Initiative Network?
Not yet. If Catalina Jack is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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