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

C. MICHAEL CALLAIS

MMSI 366755230 · Call sign WCY6639

Not yet on Master's Mate

Type

Offshore Supply Vessel

Flag

USA

Length

39.5 m

Beam

11 m

Draft

3.7 m

Call sign

WCY6639

IMO

8964795

Official No.

1062381

AIS reports

An American service vessel, C. MICHAEL CALLAIS measures 39.5 metres. She's built with a beam measuring 11 metres and a 3.7 m draft. On AIS she shows as MMSI 366755230, call sign WCY6639, IMO 8964795. Give C. MICHAEL CALLAIS 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 C. MICHAEL CALLAIS.

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 C. MICHAEL CALLAIS 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 C. MICHAEL CALLAIS 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 C. MICHAEL CALLAIS and switch it all on

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

Claim free → unlock everything

About C. MICHAEL CALLAIS

What kind of vessel is C. MICHAEL CALLAIS?

C. MICHAEL CALLAIS is a Offshore Supply Vessel flagged to United States of America.

What is C. MICHAEL CALLAIS's MMSI?

C. MICHAEL CALLAIS's MMSI is 366755230. Call sign WCY6639. IMO 8964795.

How big is C. MICHAEL CALLAIS?

C. MICHAEL CALLAIS is about 39.5 m long, 11 m on the beam, drawing 3.7 m.

Is C. MICHAEL CALLAIS on the Master's Mate Safety Initiative Network?

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