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

JOHN W STONE JR

MMSI 368370350 · Call sign WDP6194

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

23.2 m

Beam

10.7 m

Draft

3.3 m

Call sign

WDP6194

Official No.

1347154

AIS reports

On the American registry, JOHN W STONE JR is a 23.2-metre service vessel. She carries 10.7 metres in the beam and a 3.3 m draft. She's listed under MMSI 368370350, call sign WDP6194. Claim JOHN W STONE JR free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

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Built for boats that work — like JOHN W STONE JR.

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

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

Wherever JOHN W STONE JR 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 JOHN W STONE JR 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 JOHN W STONE JR and switch it all on

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About JOHN W STONE JR

What kind of vessel is JOHN W STONE JR?

JOHN W STONE JR is a Towing Vessel flagged to United States of America.

What is JOHN W STONE JR's MMSI?

JOHN W STONE JR's MMSI is 368370350. Call sign WDP6194.

How big is JOHN W STONE JR?

JOHN W STONE JR is about 23.2 m long, 10.7 m on the beam, drawing 3.3 m.

Is JOHN W STONE JR on the Master's Mate Safety Initiative Network?

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