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
jonathan Ryan
MMSI 367478370 · Call sign WDF6841
Not yet on Master's MateFlag
USACall sign
WDF6841
Official No.
617732
AIS reports
1
jonathan Ryan is an American craft. On AIS she appears as MMSI 367478370, call sign WDF6841. jonathan Ryan belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Is jonathan Ryan 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 jonathan Ryan roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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Joining the Safety Initiative Network doesn't just put jonathan Ryan 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 jonathan Ryan and switch it all on
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About jonathan Ryan
What kind of vessel is jonathan Ryan?
jonathan Ryan is a vessel flagged to United States of America.
What is jonathan Ryan's MMSI?
jonathan Ryan's MMSI is 367478370. Call sign WDF6841.
Is jonathan Ryan on the Master's Mate Safety Initiative Network?
Not yet. If jonathan Ryan is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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