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.
Offshore Supply Vessel
Hos Polestar
MMSI 367334350 · Call sign WDE3121
Not yet on Master's MateType
Offshore Supply Vessel
Flag
USALength
73.8 m
Beam
16.5 m
Draft
5.5 m
Call sign
WDE3121
IMO
9472414
Official No.
1205152
AIS reports
3
On the American registry, Hos Polestar is a 73.8-metre workboat. She carries a 16.5 m beam and a 5.5 m draft. On AIS she shows as MMSI 367334350, call sign WDE3121, IMO 9472414. The Master's Mate Safety Initiative Network welcomes Hos Polestar — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for working boats
Built for boats that work — like Hos Polestar.
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
Wherever Hos Polestar 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put Hos Polestar 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 Hos Polestar and switch it all on
Free to join · nothing to install to start · cancel anytime
About Hos Polestar
What kind of vessel is Hos Polestar?
Hos Polestar is a Offshore Supply Vessel flagged to United States of America.
What is Hos Polestar's MMSI?
Hos Polestar's MMSI is 367334350. Call sign WDE3121. IMO 9472414.
How big is Hos Polestar?
Hos Polestar is about 73.8 m long, 16.5 m on the beam, drawing 5.5 m.
Is Hos Polestar on the Master's Mate Safety Initiative Network?
Not yet. If Hos Polestar is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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