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.
Tug
SIGNET SIRIUS
MMSI 368303710 · Call sign WDN6925
Not yet on Master's MateType
Tug
Flag
USALength
30 m
Beam
12 m
Draft
6.4 m
Call sign
WDN6925
IMO
9998444
Official No.
1333381
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
53
SIGNET SIRIUS is an American working tug, 30 metres from stem to stern. SIGNET SIRIUS has a beam measuring 12 metres and a 6.4-metre draft. On the registers she's MMSI 368303710, call sign WDN6925, IMO 9998444. Sign SIGNET SIRIUS 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 working boats
Built for boats that work — like SIGNET SIRIUS.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Last known position · Jun 3, 2026
Position
27.8204° N, 97.2034° W
Working the Gulf of Mexico? 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 SIGNET SIRIUS on the map. It hands you the full bridge:
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
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.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
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 SIGNET SIRIUS and switch it all on
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About SIGNET SIRIUS
What kind of vessel is SIGNET SIRIUS?
SIGNET SIRIUS is a Tug flagged to United States of America.
Where was SIGNET SIRIUS last seen?
SIGNET SIRIUS was last reported in the Gulf of Mexico in Jun 2026 on public AIS.
What is SIGNET SIRIUS's MMSI?
SIGNET SIRIUS's MMSI is 368303710. Call sign WDN6925. IMO 9998444.
How big is SIGNET SIRIUS?
SIGNET SIRIUS is about 30 m long, 12 m on the beam, drawing 6.4 m.
Is SIGNET SIRIUS on the Master's Mate Safety Initiative Network?
Not yet. If SIGNET SIRIUS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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