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
Addis Sylvester
MMSI 367135450 · Call sign WDJ6434
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
12.9 m
Beam
4.8 m
Draft
2 m
Call sign
WDJ6434
Official No.
509266
AIS reports
2
Out of the United States, Addis Sylvester is a 12.9-metre fishing vessel. She carries a 4.8-metre beam and a 2-metre draft. Her papers read MMSI 367135450, call sign WDJ6434. Addis Sylvester is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for working captains
Know where the fleet is. Get Addis Sylvester 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 Addis Sylvester 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 Addis Sylvester 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 Addis Sylvester and switch it all on
Free to join · nothing to install to start · cancel anytime
About Addis Sylvester
What kind of vessel is Addis Sylvester?
Addis Sylvester is a Commercial Fishing Vessel flagged to United States of America.
What is Addis Sylvester's MMSI?
Addis Sylvester's MMSI is 367135450. Call sign WDJ6434.
How big is Addis Sylvester?
Addis Sylvester is about 12.9 m long, 4.8 m on the beam, drawing 2 m.
Is Addis Sylvester on the Master's Mate Safety Initiative Network?
Not yet. If Addis Sylvester is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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