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
Port Royal
MMSI 366871080 · Call sign WDA9984
Not yet on Master's MateFlag
USACall sign
WDA9984
Official No.
5347942
AIS reports
1
Hailing from the United States, Port Royal is a craft. On AIS she appears as MMSI 366871080, call sign WDA9984. Put Port Royal on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card
Is Port Royal 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 Port Royal 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 Port Royal 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 Port Royal and switch it all on
Free to join · nothing to install to start · cancel anytime
About Port Royal
What kind of vessel is Port Royal?
Port Royal is a vessel flagged to United States of America.
What is Port Royal's MMSI?
Port Royal's MMSI is 366871080. Call sign WDA9984.
Is Port Royal on the Master's Mate Safety Initiative Network?
Not yet. If Port Royal is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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