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.
Towing
SIRIUS
MMSI 367181040 · Call sign WDM8810
Not yet on Master's MateType
Towing
Flag
USALength
19 m
Beam
7 m
Draft
1.9 m
Call sign
WDM8810
Official No.
516500
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
Registered in the United States, SIRIUS is a 19-metre working vessel. Her hull carries a 7-metre beam and a draft measuring 1.9 metres. Her papers read MMSI 367181040, call sign WDM8810. SIRIUS can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for working boats
Built for boats that work — like 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 2, 2026
Position
41.4551° N, 70.5959° W
Working off the U.S. East Coast? 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put 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 SIRIUS and switch it all on
Free to join · nothing to install to start · cancel anytime
About SIRIUS
What kind of vessel is SIRIUS?
SIRIUS is a Towing flagged to United States of America.
Where was SIRIUS last seen?
SIRIUS was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is SIRIUS's MMSI?
SIRIUS's MMSI is 367181040. Call sign WDM8810.
How big is SIRIUS?
SIRIUS is about 19 m long, 7 m on the beam, drawing 1.9 m.
Is SIRIUS on the Master's Mate Safety Initiative Network?
Not yet. If SIRIUS is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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