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.
Passenger (Inspected)
Joker
MMSI 366883230 · Call sign WDB3086
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
13 m
Beam
4.3 m
Draft
1.9 m
Call sign
WDB3086
Official No.
508323
AIS reports
1
Joker, an excursion vessel wearing American colours, measures 13 metres on deck. She's built with a beam measuring 4.3 metres and a 1.9-metre draft. She's listed under MMSI 366883230, call sign WDB3086. Joker can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Joker safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Joker 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 passenger & charter operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Joker on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Joker and switch it all on
Free to join · nothing to install to start · cancel anytime
About Joker
What kind of vessel is Joker?
Joker is a Passenger (Inspected) flagged to United States of America.
What is Joker's MMSI?
Joker's MMSI is 366883230. Call sign WDB3086.
How big is Joker?
Joker is about 13 m long, 4.3 m on the beam, drawing 1.9 m.
Is Joker on the Master's Mate Safety Initiative Network?
Not yet. If Joker is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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