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)

ROYAL PRINCESS

MMSI 366821930 · Call sign WDA5606

Not yet on Master's Mate

Type

Passenger (Inspected)

Flag

USA

Length

24.6 m

Beam

6.1 m

Draft

1.8 m

Call sign

WDA5606

Official No.

1101147

AIS reports

ROYAL PRINCESS is an American 24.6-metre passenger boat. She carries a beam measuring 6.1 metres and a 1.8 m draft. On AIS she appears as MMSI 366821930, call sign WDA5606. Give ROYAL PRINCESS the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.

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

Keep every soul aboard ROYAL PRINCESS 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 ROYAL PRINCESS 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 ROYAL PRINCESS 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 ROYAL PRINCESS and switch it all on

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

Claim free → unlock everything

About ROYAL PRINCESS

What kind of vessel is ROYAL PRINCESS?

ROYAL PRINCESS is a Passenger (Inspected) flagged to United States of America.

What is ROYAL PRINCESS's MMSI?

ROYAL PRINCESS's MMSI is 366821930. Call sign WDA5606.

How big is ROYAL PRINCESS?

ROYAL PRINCESS is about 24.6 m long, 6.1 m on the beam, drawing 1.8 m.

Is ROYAL PRINCESS on the Master's Mate Safety Initiative Network?

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