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.
Freight Ship
SEA LION
MMSI 368104620 · Call sign WDK9545
Not yet on Master's MateType
Freight Ship
Flag
USALength
22.6 m
Beam
6.4 m
Draft
2.8 m
Call sign
WDK9545
Official No.
1294910
AIS reports
1
An American freighter, SEA LION measures 22.6 metres. She has a beam of 6.4 m and a draft of 2.8 m. Officially she's MMSI 368104620, call sign WDK9545. There's a place for SEA LION on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
Free forever · No credit card · for commercial operators
Eyes on SEA LION, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever SEA LION 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SEA LION 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.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 SEA LION and switch it all on
Free to join · nothing to install to start · cancel anytime
About SEA LION
What kind of vessel is SEA LION?
SEA LION is a Freight Ship flagged to United States of America.
What is SEA LION's MMSI?
SEA LION's MMSI is 368104620. Call sign WDK9545.
How big is SEA LION?
SEA LION is about 22.6 m long, 6.4 m on the beam, drawing 2.8 m.
Is SEA LION on the Master's Mate Safety Initiative Network?
Not yet. If SEA LION is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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