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
BIG B
MMSI 306411107 · Call sign PJM2580
Not yet on Master's MateType
Passenger
Flag
CUWLength
53 m
Beam
10 m
Call sign
PJM2580
IMO
934887100
First reported
Apr 2026
Last reported
Apr 2026
AIS reports
85
BIG B is a 53-metre passenger boat, listed on the Curaçao registry. BIG B has a beam measuring 10 metres. She's listed under MMSI 306411107, call sign PJM2580. BIG B carries passengers; the free Master's Mate Safety Initiative Network helps carry the watch, with distress alerting and a network nearby.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard BIG B 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 BIG B 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 BIG B 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 BIG B and switch it all on
Free to join · nothing to install to start · cancel anytime
About BIG B
What kind of vessel is BIG B?
BIG B is a Passenger flagged to Curaçao.
What is BIG B's MMSI?
BIG B's MMSI is 306411107. Call sign PJM2580. IMO 934887100.
How big is BIG B?
BIG B is about 53 m long, 10 m on the beam.
Is BIG B on the Master's Mate Safety Initiative Network?
Not yet. If BIG B is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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