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
PUP
MMSI 366870730 · Call sign WDA9952
Not yet on Master's MateType
Dredging
Flag
USALength
16.8 m
Beam
6.1 m
Draft
2 m
Call sign
WDA9952
Official No.
1113683
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
13
PUP, an American service vessel, measures 16.8 metres on deck. She's built with a beam measuring 6.1 metres and a 2 m draft. Find her under MMSI 366870730, call sign WDA9952. It's free to add PUP 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 PUP.
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
33.7529° N, 118.2206° 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 PUP 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 PUP and switch it all on
Free to join · nothing to install to start · cancel anytime
About PUP
What kind of vessel is PUP?
PUP is a Dredging flagged to United States of America.
Where was PUP last seen?
PUP was last reported in off Southern California in Jun 2026 on public AIS.
What is PUP's MMSI?
PUP's MMSI is 366870730. Call sign WDA9952.
How big is PUP?
PUP is about 16.8 m long, 6.1 m on the beam, drawing 2 m.
Is PUP on the Master's Mate Safety Initiative Network?
Not yet. If PUP 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.