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
Severn
MMSI 367371840 · Call sign WDE5806
Not yet on Master's MateType
Towing Vessel
Flag
USALength
28.9 m
Beam
10.4 m
Draft
4.4 m
Call sign
WDE5806
IMO
9544231
Official No.
1212431
AIS reports
1
Severn, an American utility boat, measures 28.9 metres on deck. She's built with 10.4 metres in the beam and a 4.4-metre draft. Her registration reads MMSI 367371840, call sign WDE5806, IMO 9544231. It's free to add Severn to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
Free forever · No credit card · for working boats
Built for boats that work — like Severn.
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
Live AIS position · Jun 9, 2026 05:31 UTC
Position
47.2923° N, 122.4443° W
Status
Under way (engine)
Speed
2.8 kn
Course
101°
Destination
TACOMA
ETA
06-02 23:00 UTC
Working the Salish Sea? 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 Severn 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 Severn and switch it all on
Free to join · nothing to install to start · cancel anytime
About Severn
What kind of vessel is Severn?
Severn is a Towing Vessel flagged to United States of America.
Where was Severn last seen?
Severn was last reported in the Salish Sea on public AIS.
What is Severn's MMSI?
Severn's MMSI is 367371840. Call sign WDE5806. IMO 9544231.
How big is Severn?
Severn is about 28.9 m long, 10.4 m on the beam, drawing 4.4 m.
Is Severn on the Master's Mate Safety Initiative Network?
Not yet. If Severn is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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