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.
Freight Barge
STAX 7
MMSI 368417750 · Call sign WDQ3539
Not yet on Master's MateType
Freight Barge
Flag
USALength
53.6 m
Beam
13.4 m
Draft
2.2 m
Call sign
WDQ3539
Official No.
1354807
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
An American barge, STAX 7 measures 53.6 metres. STAX 7 has 13.4 metres in the beam and a 2.2-metre draft. She broadcasts as MMSI 368417750, call sign WDQ3539. It's free to add STAX 7 to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for commercial operators
Eyes on STAX 7, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 4, 2026
Position
33.7563° N, 118.2144° W
Transiting off Southern California? 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put STAX 7 on the map. It hands you the full bridge:
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
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.
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 STAX 7 and switch it all on
Free to join · nothing to install to start · cancel anytime
About STAX 7
What kind of vessel is STAX 7?
STAX 7 is a Freight Barge flagged to United States of America.
Where was STAX 7 last seen?
STAX 7 was last reported in off Southern California in Jun 2026 on public AIS.
What is STAX 7's MMSI?
STAX 7's MMSI is 368417750. Call sign WDQ3539.
How big is STAX 7?
STAX 7 is about 53.6 m long, 13.4 m on the beam, drawing 2.2 m.
Is STAX 7 on the Master's Mate Safety Initiative Network?
Not yet. If STAX 7 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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