Sign up free Dashboard Log out
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 Vessel

Polaris

MMSI 338397000 · Call sign WDG8925

Not yet on Master's Mate
Type
Towing Vessel
Flag
USAUSA
Length
30.2 m
Beam
9.8 m
Draft
4.7 m
Call sign
WDG8925
IMO
7802627
Official No.
596518
AIS reports
2

Polaris is an American service vessel — 30.2 metres overall. Polaris has a beam of 9.8 m and a 4.7 m draft. Officially she's MMSI 338397000, call sign WDG8925, IMO 7802627. Add Polaris to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card · for working boats

Built for boats that work — like Polaris.

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 Polaris 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 Polaris 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 Polaris and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About Polaris

What kind of vessel is Polaris?
Polaris is a Towing Vessel flagged to United States of America.
What is Polaris's MMSI?
Polaris's MMSI is 338397000. Call sign WDG8925. IMO 7802627.
How big is Polaris?
Polaris is about 30.2 m long, 9.8 m on the beam, drawing 4.7 m.
Is Polaris on the Master's Mate Safety Initiative Network?
Not yet. If Polaris is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).

© 2026 Master’s Mate. All rights reserved.