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.
Recreational
Preference
MMSI 367699950 · Call sign WDI4567
Not yet on Master's MateType
Recreational
Flag
USALength
17.7 m
Beam
5.2 m
Draft
3 m
Call sign
WDI4567
Official No.
971826
Hull ID
TLY57004F091
AIS reports
1
Preference is an American private vessel — 17.7 metres overall. Her hull carries 5.2 metres in the beam and a draft measuring 3 metres. Officially she's MMSI 367699950, call sign WDI4567. Preference is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for recreational captains
Keep Preference looked after — even when you’re not aboard.
Anchor alarms that wake you, a live camera at the dock, and weather you can trust before every run.
Look after her — claim free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Preference 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 · for recreational captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Preference 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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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 Preference and switch it all on
Free to join · nothing to install to start · cancel anytime
About Preference
What kind of vessel is Preference?
Preference is a Recreational flagged to United States of America.
What is Preference's MMSI?
Preference's MMSI is 367699950. Call sign WDI4567.
How big is Preference?
Preference is about 17.7 m long, 5.2 m on the beam, drawing 3 m.
Is Preference on the Master's Mate Safety Initiative Network?
Not yet. If Preference is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.