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 (Uninspected)
Miriam
MMSI 367522570 · Call sign WDG3107
Not yet on Master's MateType
Passenger (Uninspected)
Flag
USALength
21.8 m
Beam
5.2 m
Draft
2.7 m
Call sign
WDG3107
Official No.
251363
AIS reports
1
Miriam, a passenger ferry under American registration, measures 21.8 metres on deck. She has a 5.2-metre beam and a draft of 2.7 m. On the registers she's MMSI 367522570, call sign WDG3107. Miriam can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Miriam 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 Miriam 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 Miriam 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 Miriam and switch it all on
Free to join · nothing to install to start · cancel anytime
About Miriam
What kind of vessel is Miriam?
Miriam is a Passenger (Uninspected) flagged to United States of America.
What is Miriam's MMSI?
Miriam's MMSI is 367522570. Call sign WDG3107.
How big is Miriam?
Miriam is about 21.8 m long, 5.2 m on the beam, drawing 2.7 m.
Is Miriam on the Master's Mate Safety Initiative Network?
Not yet. If Miriam is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.