Sign up free Dashboard Log out
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.
Towing Vessel

Columbia Layne

MMSI 303296000 · Call sign WDJ5683

Not yet on Master's Mate
Type
Towing Vessel
Flag
USAUSA
Length
35.3 m
Beam
9 m
Draft
5.2 m
Call sign
WDJ5683
IMO
6604810
Official No.
298539
AIS reports
3

Columbia Layne flies the American flag — a 35.3-metre work boat. Below, she has a 9 m beam and a draft measuring 5.2 metres. Her registration reads MMSI 303296000, call sign WDJ5683, IMO 6604810. Sign Columbia Layne up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.

Free forever · No credit card · for working boats

Built for boats that work — like Columbia Layne.

Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.

Rig her out — free →

Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers

Wherever Columbia Layne 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 boats

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Columbia Layne on the map. It hands you the full bridge:

Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
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 Columbia Layne and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About Columbia Layne

What kind of vessel is Columbia Layne?
Columbia Layne is a Towing Vessel flagged to United States of America.
What is Columbia Layne's MMSI?
Columbia Layne's MMSI is 303296000. Call sign WDJ5683. IMO 6604810.
How big is Columbia Layne?
Columbia Layne is about 35.3 m long, 9 m on the beam, drawing 5.2 m.
Is Columbia Layne on the Master's Mate Safety Initiative Network?
Not yet. If Columbia Layne 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.