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.
Search & Rescue
FIREBOAT 4
MMSI 367133910 · Call sign WS 9087
Not yet on Master's MateType
Search & Rescue
Flag
USALength
22 m
Beam
8 m
Draft
4 m
Call sign
WS 9087
Official No.
287326
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
Registered in the United States, FIREBOAT 4 is a 22-metre craft. She's built with a beam measuring 8 metres and a 4-metre draft. Look for MMSI 367133910, call sign WS 9087. Join FIREBOAT 4 to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
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Is FIREBOAT 4 your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
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Live AIS position · Jun 9, 2026 15:45 UTC
Position
33.7655° N, 118.2556° W
Status
Under way (engine)
Speed
0.1 kn
Course
233°
Crossing off Southern California? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put FIREBOAT 4 on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim FIREBOAT 4 and switch it all on
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About FIREBOAT 4
What kind of vessel is FIREBOAT 4?
FIREBOAT 4 is a Search & Rescue flagged to United States of America.
Where was FIREBOAT 4 last seen?
FIREBOAT 4 was last reported in off Southern California in Jun 2026 on public AIS.
What is FIREBOAT 4's MMSI?
FIREBOAT 4's MMSI is 367133910. Call sign WS 9087.
How big is FIREBOAT 4?
FIREBOAT 4 is about 22 m long, 8 m on the beam, drawing 4 m.
Is FIREBOAT 4 on the Master's Mate Safety Initiative Network?
Not yet. If FIREBOAT 4 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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