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.
Vessel
SEMAPHORE
last seen 36°N 5°W · Jun 2026 · MMSI 242123456 · Call sign CNA
Not yet on Master's MateLength
5 m
Beam
3 m
Call sign
CNA
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
6
SEMAPHORE is a 5-metre craft. SEMAPHORE has a beam of 3 m. Find her under MMSI 242123456, call sign CNA. SEMAPHORE is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is SEMAPHORE 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.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 15, 2026 20:33 UTC
Position
35.7527° N, 5.3402° W
Status
Under way (engine)
Speed
0.0 kn
Course
360°
Crossing the Strait of Gibraltar? You're never out there alone.
Thousands of cruisers on the Master's Mate Network — ready to help the moment something goes wrong.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put SEMAPHORE 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 SEMAPHORE and switch it all on
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About SEMAPHORE
What kind of vessel is SEMAPHORE?
SEMAPHORE is a vessel.
Where was SEMAPHORE last seen?
SEMAPHORE was last reported in the Strait of Gibraltar in Jun 2026 on public AIS.
What is SEMAPHORE's MMSI?
SEMAPHORE's MMSI is 242123456. Call sign CNA.
How big is SEMAPHORE?
SEMAPHORE is about 5 m long, 3 m on the beam.
Is SEMAPHORE on the Master's Mate Safety Initiative Network?
Not yet. If SEMAPHORE is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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