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
MADISON III
MMSI 366956940 · Call sign WDB8327
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
21.5 m
Beam
6.1 m
Draft
3.5 m
Call sign
WDB8327
IMO
7337050
Official No.
544976
AIS reports
1
MADISON III is an American offshore fishing boat — 21.5 metres overall. MADISON III has a 6.1 m beam and a 3.5 m draft. Find her under MMSI 366956940, call sign WDB8327, IMO 7337050. MADISON III belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
Free forever · No credit card · for working captains
Know where the fleet is. Get MADISON III 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 MADISON III 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 MADISON III 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 MADISON III and switch it all on
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About MADISON III
What kind of vessel is MADISON III?
MADISON III is a Commercial Fishing Vessel flagged to United States of America.
What is MADISON III's MMSI?
MADISON III's MMSI is 366956940. Call sign WDB8327. IMO 7337050.
How big is MADISON III?
MADISON III is about 21.5 m long, 6.1 m on the beam, drawing 3.5 m.
Is MADISON III on the Master's Mate Safety Initiative Network?
Not yet. If MADISON III is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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