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 Barge

MARMAC306

MMSI 368407480 · Call sign WDQ2400

Not yet on Master's Mate

Type

Freight Barge

Flag

USA

Length

87.8 m

Beam

30.5 m

Draft

6 m

Call sign

WDQ2400

Official No.

1341528

AIS reports

MARMAC306, an American cargo barge, measures 87.8 metres on deck. Her hull carries a beam of 30.5 m and a draft of 6 m. On AIS she shows as MMSI 368407480, call sign WDQ2400. MARMAC306 belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

Free forever · No credit card · for commercial operators

Eyes on MARMAC306, 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 MARMAC306 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 MARMAC306 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 MARMAC306 and switch it all on

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Claim free → unlock everything

About MARMAC306

What kind of vessel is MARMAC306?

MARMAC306 is a Freight Barge flagged to United States of America.

What is MARMAC306's MMSI?

MARMAC306's MMSI is 368407480. Call sign WDQ2400.

How big is MARMAC306?

MARMAC306 is about 87.8 m long, 30.5 m on the beam, drawing 6 m.

Is MARMAC306 on the Master's Mate Safety Initiative Network?

Not yet. If MARMAC306 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).