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.
Research Vessel
Judge Perez
MMSI 366959170 · Call sign WDB8482
Not yet on Master's MateType
Research Vessel
Flag
USALength
18.7 m
Beam
5.2 m
Draft
2.3 m
Call sign
WDB8482
Official No.
507561
AIS reports
1
On the American registry, Judge Perez is an 18.7-metre vessel. She's built with a 5.2 m beam and a 2.3 m draft. Find her under MMSI 366959170, call sign WDB8482. Judge Perez is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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Is Judge Perez your boat?
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever Judge Perez roams, 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 Judge Perez on the map. It hands you the full bridge:
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.
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.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
Claim Judge Perez and switch it all on
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About Judge Perez
What kind of vessel is Judge Perez?
Judge Perez is a Research Vessel flagged to United States of America.
What is Judge Perez's MMSI?
Judge Perez's MMSI is 366959170. Call sign WDB8482.
How big is Judge Perez?
Judge Perez is about 18.7 m long, 5.2 m on the beam, drawing 2.3 m.
Is Judge Perez on the Master's Mate Safety Initiative Network?
Not yet. If Judge Perez is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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