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.
Tank Barge
LONG ISLAND
MMSI 367140480 · Call sign WDD4121
Not yet on Master's MateType
Tank Barge
Flag
USALength
101.8 m
Beam
21.3 m
Draft
7.6 m
Call sign
WDD4121
Official No.
1187774
AIS reports
1
LONG ISLAND is a tank ship registered in the United States, spanning 101.8 metres. Her hull carries a beam of 21.3 m and a draft measuring 7.6 metres. She's listed under MMSI 367140480, call sign WDD4121. LONG ISLAND can be part of the Master's Mate Safety Initiative Network at no cost — a community watch that never sleeps.
Free forever · No credit card · for commercial operators
Eyes on LONG 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 LONG 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 LONG 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 LONG ISLAND and switch it all on
Free to join · nothing to install to start · cancel anytime
About LONG ISLAND
What kind of vessel is LONG ISLAND?
LONG ISLAND is a Tank Barge flagged to United States of America.
What is LONG ISLAND's MMSI?
LONG ISLAND's MMSI is 367140480. Call sign WDD4121.
How big is LONG ISLAND?
LONG ISLAND is about 101.8 m long, 21.3 m on the beam, drawing 7.6 m.
Is LONG ISLAND on the Master's Mate Safety Initiative Network?
Not yet. If LONG ISLAND is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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