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.
Commercial Fishing Vessel
ADDY J
MMSI 366899760 · Call sign WDB4566
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
22.4 m
Beam
7.3 m
Draft
4.1 m
Call sign
WDB4566
IMO
8812289
Official No.
930728
AIS reports
1
ADDY J flies the American flag — a 22.4-metre fishing boat. Below, she has a 7.3 m beam and a draft measuring 4.1 metres. Her registration reads MMSI 366899760, call sign WDB4566, IMO 8812289. Give ADDY J the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for working captains
Know where the fleet is. Get ADDY J home safe.
Live AIS traffic, weather you can plan around, engine & systems telemetry, and a distress mesh that reaches nearby boats.
Keep the fleet in sight — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever ADDY J 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 working captains
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put ADDY J on the map. It hands you the full bridge:
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.
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.
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 ADDY J and switch it all on
Free to join · nothing to install to start · cancel anytime
About ADDY J
What kind of vessel is ADDY J?
ADDY J is a Commercial Fishing Vessel flagged to United States of America.
What is ADDY J's MMSI?
ADDY J's MMSI is 366899760. Call sign WDB4566. IMO 8812289.
How big is ADDY J?
ADDY J is about 22.4 m long, 7.3 m on the beam, drawing 4.1 m.
Is ADDY J on the Master's Mate Safety Initiative Network?
Not yet. If ADDY J 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.