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.
Tanker
STI GUARD
MMSI 538005822 · Call sign V7HH4
Not yet on Master's MateType
Tanker
Flag
MHLLength
249 m
Beam
44 m
Draft
11 m
Call sign
V7HH4
IMO
9717101
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
STI GUARD is a Marshall Islands 249-metre tank vessel. Below, she has a 44 m beam and a draft measuring 11 metres. On the registers she's MMSI 538005822, call sign V7HH4, IMO 9717101. Sign STI GUARD up free to the Master's Mate Safety Initiative Network and join a fleet that looks after its own.
Free forever · No credit card · for commercial operators
Eyes on STI GUARD, 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
Live AIS position · Jun 9, 2026 13:30 UTC
Position
34.5522° N, 121.1724° W
Status
Under way (engine)
Speed
9.2 kn
Course
328°
Destination
CAVAN
ETA
06-13 06:00 UTC
Wherever STI GUARD 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put STI GUARD 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 STI GUARD and switch it all on
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About STI GUARD
What kind of vessel is STI GUARD?
STI GUARD is a Tanker flagged to Marshall Islands.
Where was STI GUARD last seen?
STI GUARD was last reported in around 34°N 118°W in Jun 2026 on public AIS.
What is STI GUARD's MMSI?
STI GUARD's MMSI is 538005822. Call sign V7HH4. IMO 9717101.
How big is STI GUARD?
STI GUARD is about 249 m long, 44 m on the beam, drawing 11 m.
Is STI GUARD on the Master's Mate Safety Initiative Network?
Not yet. If STI GUARD is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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