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.

Vessel

SAN FRANCISCO SPIRIT

MMSI 367758990 · Call sign WDJ2504

Not yet on Master's Mate

Flag

USA

Length

41 m

Beam

12 m

Draft

4 m

Call sign

WDJ2504

IMO

971235

Official No.

971235

First reported

Jun 2026

Last reported

Jun 2026

AIS reports

SAN FRANCISCO SPIRIT, a craft registered in the United States, measures 41 metres on deck. She carries 12 metres in the beam and a 4 m draft. On AIS she shows as MMSI 367758990, call sign WDJ2504. SAN FRANCISCO SPIRIT is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.

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Last known position · Jun 4, 2026

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Position

37.8173° N, 122.4226° W

Crossing San Francisco Bay? 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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Joining the Safety Initiative Network doesn't just put SAN FRANCISCO SPIRIT on the map. It hands you the full bridge:

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.

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.

Onboard Cameras

Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.

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.

Hail Any Captain

A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.

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About SAN FRANCISCO SPIRIT

What kind of vessel is SAN FRANCISCO SPIRIT?

SAN FRANCISCO SPIRIT is a vessel flagged to United States of America.

Where was SAN FRANCISCO SPIRIT last seen?

SAN FRANCISCO SPIRIT was last reported in San Francisco Bay in Jun 2026 on public AIS.

What is SAN FRANCISCO SPIRIT's MMSI?

SAN FRANCISCO SPIRIT's MMSI is 367758990. Call sign WDJ2504. IMO 971235.

How big is SAN FRANCISCO SPIRIT?

SAN FRANCISCO SPIRIT is about 41 m long, 12 m on the beam, drawing 4 m.

Is SAN FRANCISCO SPIRIT on the Master's Mate Safety Initiative Network?

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