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
Checked Out
MMSI 303599000 · Call sign WDM4951
Not yet on Master's MateType
Commercial Fishing Vessel
Flag
USALength
50.6 m
Beam
11.6 m
Draft
3.7 m
Call sign
WDM4951
IMO
7366831
Official No.
552893
AIS reports
2
Registered in the United States, Checked Out is a 50.6-metre fishing trawler. She has 11.6 metres in the beam and a draft measuring 3.7 metres. Her registration reads MMSI 303599000, call sign WDM4951, IMO 7366831. Checked Out can join the Master's Mate Safety Initiative Network for free: think of it as a watch network that has every boat's back.
Free forever · No credit card · for working captains
Know where the fleet is. Get Checked Out 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 Checked Out 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 Checked Out 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 Checked Out and switch it all on
Free to join · nothing to install to start · cancel anytime
About Checked Out
What kind of vessel is Checked Out?
Checked Out is a Commercial Fishing Vessel flagged to United States of America.
What is Checked Out's MMSI?
Checked Out's MMSI is 303599000. Call sign WDM4951. IMO 7366831.
How big is Checked Out?
Checked Out is about 50.6 m long, 11.6 m on the beam, drawing 3.7 m.
Is Checked Out on the Master's Mate Safety Initiative Network?
Not yet. If Checked Out 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.