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.

Passenger (Inspected)

San Salvador

MMSI 338581000 · Call sign WDI7917

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

21.5 m

Beam

7.5 m

Draft

3.8 m

Call sign

WDI7917

Official No.

1039428

AIS reports

San Salvador is a ferry listed on the the United States registry, 21.5 metres overall. She's built with 7.5 metres in the beam and a 3.8-metre draft. She's listed under MMSI 338581000, call sign WDI7917. Claim San Salvador free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.

Free forever · No credit card · for passenger & charter operators

Keep every soul aboard San Salvador safe.

Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.

Switch on the safety stack — free →

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

Wherever San Salvador 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 passenger & charter operators

The most powerful cruising platform ever built — yours, free.

Joining the Safety Initiative Network doesn't just put San Salvador on the map. It hands you the full bridge:

Distress Mesh

Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.

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.

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.

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 San Salvador and switch it all on

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About San Salvador

What kind of vessel is San Salvador?

San Salvador is a Passenger (Inspected) flagged to United States of America.

What is San Salvador's MMSI?

San Salvador's MMSI is 338581000. Call sign WDI7917.

How big is San Salvador?

San Salvador is about 21.5 m long, 7.5 m on the beam, drawing 3.8 m.

Is San Salvador on the Master's Mate Safety Initiative Network?

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