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
WRITE ON
MMSI 366005940 · Call sign WAD6412
Not yet on Master's MateFlag
USACall sign
WAD6412
Official No.
NY5289GN
AIS reports
1
WRITE ON flies the American flag — a vessel. Her registration reads MMSI 366005940, call sign WAD6412. Claim WRITE ON free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Free forever · No credit card
Is WRITE ON 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 WRITE ON 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 WRITE ON 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 WRITE ON and switch it all on
Free to join · nothing to install to start · cancel anytime
About WRITE ON
What kind of vessel is WRITE ON?
WRITE ON is a vessel flagged to United States of America.
What is WRITE ON's MMSI?
WRITE ON's MMSI is 366005940. Call sign WAD6412.
Is WRITE ON on the Master's Mate Safety Initiative Network?
Not yet. If WRITE ON is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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