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.
Dredging
MONITOR III
MMSI 367659190 · Call sign WDH8555
Not yet on Master's MateType
Dredging
Flag
USALength
12 m
Beam
4 m
Call sign
WDH8555
Official No.
CF 2220 XC
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
19
MONITOR III flies the American flag — a 12-metre utility vessel. She's built with a 4-metre beam. On AIS she shows as MMSI 367659190, call sign WDH8555. Give MONITOR III the backing of the Master's Mate Safety Initiative Network — free, and a fleet that has her back.
Free forever · No credit card · for working boats
Built for boats that work — like MONITOR III.
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
Last known position · Jun 2, 2026
Position
32.7233° N, 117.2229° W
Working off Southern California? 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 MONITOR III 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 MONITOR III and switch it all on
Free to join · nothing to install to start · cancel anytime
About MONITOR III
What kind of vessel is MONITOR III?
MONITOR III is a Dredging flagged to United States of America.
Where was MONITOR III last seen?
MONITOR III was last reported in off Southern California in Jun 2026 on public AIS.
What is MONITOR III's MMSI?
MONITOR III's MMSI is 367659190. Call sign WDH8555.
How big is MONITOR III?
MONITOR III is about 12 m long, 4 m on the beam.
Is MONITOR III on the Master's Mate Safety Initiative Network?
Not yet. If MONITOR III is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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