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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

Irene B

MMSI 367084480 · Call sign WDI5714

Not yet on Master's Mate
Type
Offshore Supply Vessel
Flag
USAUSA
Length
45.4 m
Beam
11 m
Draft
3.5 m
Call sign
WDI5714
IMO
9380714
Official No.
1178527
AIS reports
2

Irene B is an utility vessel flagged in the United States, 45.4 metres overall. She's built with a beam measuring 11 metres and a 3.5-metre draft. She's on record as MMSI 367084480, call sign WDI5714, IMO 9380714. Bring Irene B aboard the Master's Mate Safety Initiative Network — free, and every captain on it has the others' backs.

Free forever · No credit card · for working boats

Built for boats that work — like Irene B.

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 Irene B roams, you're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put Irene B 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 Irene B and switch it all on
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Claim free → unlock everything

About Irene B

What kind of vessel is Irene B?
Irene B is a Offshore Supply Vessel flagged to United States of America.
What is Irene B's MMSI?
Irene B's MMSI is 367084480. Call sign WDI5714. IMO 9380714.
How big is Irene B?
Irene B is about 45.4 m long, 11 m on the beam, drawing 3.5 m.
Is Irene B on the Master's Mate Safety Initiative Network?
Not yet. If Irene B is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

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