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)
Billy McCall
MMSI 366748630 · Call sign WDB7807
Not yet on Master's MateType
Passenger (Inspected)
Flag
USALength
44.4 m
Beam
9.1 m
Draft
0.5 m
Call sign
WDB7807
IMO
8977211
Official No.
959215
AIS reports
2
Billy McCall is a passenger boat flying the flag of the United States, measuring 44.4 metres. She's built with a 9.1-metre beam and a 0.5 m draft. She broadcasts as MMSI 366748630, call sign WDB7807, IMO 8977211. The Master's Mate Safety Initiative Network welcomes Billy McCall — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard Billy McCall 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 Billy McCall 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 Billy McCall 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 Billy McCall and switch it all on
Free to join · nothing to install to start · cancel anytime
About Billy McCall
What kind of vessel is Billy McCall?
Billy McCall is a Passenger (Inspected) flagged to United States of America.
What is Billy McCall's MMSI?
Billy McCall's MMSI is 366748630. Call sign WDB7807. IMO 8977211.
How big is Billy McCall?
Billy McCall is about 44.4 m long, 9.1 m on the beam, drawing 0.5 m.
Is Billy McCall on the Master's Mate Safety Initiative Network?
Not yet. If Billy McCall 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.