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
COHO
MMSI 367370780 · Call sign WDG9737
Not yet on Master's MateType
Towing Vessel
Flag
USALength
152 m
Beam
24 m
Draft
6.2 m
Call sign
WDG9737
IMO
9536662
Official No.
1209023
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
71
COHO flies the American flag — a 152-metre utility boat. COHO has a 24 m beam and a 6.2-metre draft. She's on record as MMSI 367370780, call sign WDG9737, IMO 9536662. Add COHO 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 COHO.
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 07:54 UTC
Position
39.8463° N, 75.2659° W
Status
Moored
Speed
0.0 kn
Course
280°
Destination
US^0Q6T>0Q6T
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 COHO 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 COHO and switch it all on
Free to join · nothing to install to start · cancel anytime
About COHO
What kind of vessel is COHO?
COHO is a Towing Vessel flagged to United States of America.
Where was COHO last seen?
COHO was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is COHO's MMSI?
COHO's MMSI is 367370780. Call sign WDG9737. IMO 9536662.
How big is COHO?
COHO is about 152 m long, 24 m on the beam, drawing 6.2 m.
Is COHO on the Master's Mate Safety Initiative Network?
Not yet. If COHO 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.