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
USCGC Catenary
MMSI 367440120 · Call sign WDF3458
Not yet on Master's MateFlag
USACall sign
WDF3458
Official No.
WYTL65606
AIS reports
2
USCGC Catenary flies the American flag — a vessel. She's listed under MMSI 367440120, call sign WDF3458. The Master's Mate Safety Initiative Network welcomes USCGC Catenary — free to join, cruiser-run, and always on watch.
Free forever · No credit card
Is USCGC Catenary 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 USCGC Catenary 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 USCGC Catenary 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 USCGC Catenary and switch it all on
Free to join · nothing to install to start · cancel anytime
About USCGC Catenary
What kind of vessel is USCGC Catenary?
USCGC Catenary is a vessel flagged to United States of America.
What is USCGC Catenary's MMSI?
USCGC Catenary's MMSI is 367440120. Call sign WDF3458.
Is USCGC Catenary on the Master's Mate Safety Initiative Network?
Not yet. If USCGC Catenary is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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