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

HOS PANTHER

MMSI 368344630 · Call sign WDP3348

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

79.7 m

Beam

18.3 m

Draft

7.3 m

Call sign

WDP3348

IMO

9529683

Official No.

1218372

AIS reports

HOS PANTHER is an American working craft, 79.7 metres LOA. She has a 18.3-metre beam and a draft of 7.3 m. She's on record as MMSI 368344630, call sign WDP3348, IMO 9529683. Add HOS PANTHER to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.

Free forever · No credit card · for working boats

Built for boats that work — like HOS PANTHER.

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

Wherever HOS PANTHER roams, 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 HOS PANTHER 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 HOS PANTHER and switch it all on

Free to join · nothing to install to start · cancel anytime

Claim free → unlock everything

About HOS PANTHER

What kind of vessel is HOS PANTHER?

HOS PANTHER is a Offshore Supply Vessel flagged to United States of America.

What is HOS PANTHER's MMSI?

HOS PANTHER's MMSI is 368344630. Call sign WDP3348. IMO 9529683.

How big is HOS PANTHER?

HOS PANTHER is about 79.7 m long, 18.3 m on the beam, drawing 7.3 m.

Is HOS PANTHER on the Master's Mate Safety Initiative Network?

Not yet. If HOS PANTHER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).