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.
Offshore Supply Vessel
Marsh Island
MMSI 368008130 · Call sign WDJ7587
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
95.1 m
Beam
20.1 m
Draft
7.9 m
Call sign
WDJ7587
IMO
9800386
Official No.
1266925
AIS reports
3
Marsh Island, an American service vessel, measures 95.1 metres on deck. She's built with a beam measuring 20.1 metres and a 7.9 m draft. Officially she's MMSI 368008130, call sign WDJ7587, IMO 9800386. Marsh Island is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
Free forever · No credit card · for working boats
Built for boats that work — like Marsh Island.
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 Marsh Island 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 Marsh Island 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 Marsh Island and switch it all on
Free to join · nothing to install to start · cancel anytime
About Marsh Island
What kind of vessel is Marsh Island?
Marsh Island is a Offshore Supply Vessel flagged to United States of America.
What is Marsh Island's MMSI?
Marsh Island's MMSI is 368008130. Call sign WDJ7587. IMO 9800386.
How big is Marsh Island?
Marsh Island is about 95.1 m long, 20.1 m on the beam, drawing 7.9 m.
Is Marsh Island on the Master's Mate Safety Initiative Network?
Not yet. If Marsh Island is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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