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

S/R ANGEL ISLAND

MMSI 366919540 · Call sign WDB6179

Not yet on Master's Mate

Type

Towing Vessel

Flag

USA

Length

31.9 m

Beam

12.2 m

Draft

5.5 m

Call sign

WDB6179

IMO

9153329

Official No.

1043482

AIS reports

An American workboat, S/R ANGEL ISLAND measures 31.9 metres. She's built with 12.2 metres in the beam and a 5.5 m draft. Her registration reads MMSI 366919540, call sign WDB6179, IMO 9153329. Give S/R ANGEL ISLAND the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

Free forever · No credit card · for working boats

Built for boats that work — like S/R ANGEL ISLAND.

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

Rig her out — free →

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

Wherever S/R ANGEL ISLAND 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 working boats

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

Joining the Safety Initiative Network doesn't just put S/R ANGEL ISLAND 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 S/R ANGEL ISLAND and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About S/R ANGEL ISLAND

What kind of vessel is S/R ANGEL ISLAND?

S/R ANGEL ISLAND is a Towing Vessel flagged to United States of America.

What is S/R ANGEL ISLAND's MMSI?

S/R ANGEL ISLAND's MMSI is 366919540. Call sign WDB6179. IMO 9153329.

How big is S/R ANGEL ISLAND?

S/R ANGEL ISLAND is about 31.9 m long, 12.2 m on the beam, drawing 5.5 m.

Is S/R ANGEL ISLAND on the Master's Mate Safety Initiative Network?

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