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.
Industrial Vessel
DEER ISLAND
MMSI 368059520 · Call sign WDK4881
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
84.9 m
Beam
20.1 m
Draft
7.9 m
Call sign
WDK4881
IMO
9788356
Official No.
1289730
AIS reports
1
Registered in the United States, DEER ISLAND is an 84.9-metre commercial vessel. She's built with a beam measuring 20.1 metres and a 7.9-metre draft. Officially she's MMSI 368059520, call sign WDK4881, IMO 9788356. DEER ISLAND is welcome on the Master's Mate Safety Initiative Network — free situational awareness and a watch network shared by vessels of every size.
Free forever · No credit card · for commercial operators
Eyes on DEER ISLAND, around the clock.
Real-time AIS, full systems telemetry, distress alerting and worldwide charts — your hull on one dashboard, from anywhere.
Put her on the dashboard — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Wherever DEER ISLAND 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 commercial operators
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put DEER ISLAND on the map. It hands you the full bridge:
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
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.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
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 DEER ISLAND and switch it all on
Free to join · nothing to install to start · cancel anytime
About DEER ISLAND
What kind of vessel is DEER ISLAND?
DEER ISLAND is a Industrial Vessel flagged to United States of America.
What is DEER ISLAND's MMSI?
DEER ISLAND's MMSI is 368059520. Call sign WDK4881. IMO 9788356.
How big is DEER ISLAND?
DEER ISLAND is about 84.9 m long, 20.1 m on the beam, drawing 7.9 m.
Is DEER ISLAND on the Master's Mate Safety Initiative Network?
Not yet. If DEER ISLAND is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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