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.

Tank Barge

B. NO. 240

MMSI 367452920 · Call sign WCZ9612

Not yet on Master's Mate

Type

Tank Barge

Flag

USA

Length

140.8 m

Beam

24.4 m

Draft

11 m

Call sign

WCZ9612

IMO

8646848

Official No.

998038

AIS reports

B. NO. 240, a tank ship under American registration, measures 140.8 metres on deck. She's built with 24.4 metres in the beam and a 11-metre draft. Officially she's MMSI 367452920, call sign WCZ9612, IMO 8646848. Claim B. NO. 240 free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

Free forever · No credit card · for commercial operators

Eyes on B. NO. 240, 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 B. NO. 240 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 B. NO. 240 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 B. NO. 240 and switch it all on

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Claim free → unlock everything

About B. NO. 240

What kind of vessel is B. NO. 240?

B. NO. 240 is a Tank Barge flagged to United States of America.

What is B. NO. 240's MMSI?

B. NO. 240's MMSI is 367452920. Call sign WCZ9612. IMO 8646848.

How big is B. NO. 240?

B. NO. 240 is about 140.8 m long, 24.4 m on the beam, drawing 11 m.

Is B. NO. 240 on the Master's Mate Safety Initiative Network?

Not yet. If B. NO. 240 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).