Sign up free Dashboard Log out
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.
Offshore Supply Vessel

PIPER INNESS

MMSI 367017440 · Call sign WDC3984

Not yet on Master's Mate
Type
Offshore Supply Vessel
Flag
USAUSA
Length
42 m
Beam
8 m
Draft
2 m
Call sign
WDC3984
IMO
8964109
Official No.
1060958
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
86

An American work boat, PIPER INNESS measures 42 metres. She has a 8-metre beam and a draft measuring 2 metres. On AIS she appears as MMSI 367017440, call sign WDC3984, IMO 8964109. PIPER INNESS belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.

Free forever · No credit card · for working boats

Built for boats that work — like PIPER INNESS.

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 14:20 UTC
Position
33.7709° N, 118.2117° W
Status
Under way (engine)
Speed
0.0 kn
Course
259°
Destination
LONG BEACH
ETA
06-06 04:50 UTC
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 PIPER INNESS 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 PIPER INNESS and switch it all on
Free to join · nothing to install to start · cancel anytime
Claim free → unlock everything

About PIPER INNESS

What kind of vessel is PIPER INNESS?
PIPER INNESS is a Offshore Supply Vessel flagged to United States of America.
Where was PIPER INNESS last seen?
PIPER INNESS was last reported in off Southern California in Jun 2026 on public AIS.
What is PIPER INNESS's MMSI?
PIPER INNESS's MMSI is 367017440. Call sign WDC3984. IMO 8964109.
How big is PIPER INNESS?
PIPER INNESS is about 42 m long, 8 m on the beam, drawing 2 m.
Is PIPER INNESS on the Master's Mate Safety Initiative Network?
Not yet. If PIPER INNESS 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.