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
Over the Line
MMSI 368289530 · Call sign WDN5379
Not yet on Master's MateFlag
USACall sign
WDN5379
Official No.
VI4167TC
AIS reports
1
Over the Line flies the American flag — a craft. Officially she's MMSI 368289530, call sign WDN5379. Claim Over the Line free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is Over the Line 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 Over the Line 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 Over the Line 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 Over the Line and switch it all on
Free to join · nothing to install to start · cancel anytime
About Over the Line
What kind of vessel is Over the Line?
Over the Line is a vessel flagged to United States of America.
What is Over the Line's MMSI?
Over the Line's MMSI is 368289530. Call sign WDN5379.
Is Over the Line on the Master's Mate Safety Initiative Network?
Not yet. If Over the Line is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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