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.
Passenger
MONOMOY
MMSI 368354520 · Call sign WDP4451
Not yet on Master's MateType
Passenger
Flag
USALength
66 m
Beam
20 m
Draft
3.5 m
Call sign
WDP4451
IMO
9472426
Official No.
1205153
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86
MONOMOY is a ferry vessel listed on the the United States registry, 66 metres LOA. Below, she has a 20 m beam and a draft of 3.5 m. Her papers read MMSI 368354520, call sign WDP4451, IMO 9472426. The Master's Mate Safety Initiative Network welcomes MONOMOY — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for passenger & charter operators
Keep every soul aboard MONOMOY safe.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Live AIS position · Jun 9, 2026 08:01 UTC
Position
41.5230° N, 70.6714° W
Status
Under way (engine)
Speed
0.0 kn
Course
113°
Destination
VINEYARD ROUTE
ETA
01-19 15:00 UTC
Sailing 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.
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The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put MONOMOY on the map. It hands you the full bridge:
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
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 MONOMOY and switch it all on
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About MONOMOY
What kind of vessel is MONOMOY?
MONOMOY is a Passenger flagged to United States of America.
Where was MONOMOY last seen?
MONOMOY was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is MONOMOY's MMSI?
MONOMOY's MMSI is 368354520. Call sign WDP4451. IMO 9472426.
How big is MONOMOY?
MONOMOY is about 66 m long, 20 m on the beam, drawing 3.5 m.
Is MONOMOY on the Master's Mate Safety Initiative Network?
Not yet. If MONOMOY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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