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
EAST RIVER
MMSI 366898790 · Call sign WDB4477
Not yet on Master's MateType
Industrial Vessel
Flag
USALength
12 m
Beam
5 m
Draft
1.7 m
Call sign
WDB4477
Official No.
605290
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
52
EAST RIVER is a working ship listed on the the United States registry, 12 metres in length. She's built with a 5-metre beam and a 1.7 m draft. Officially she's MMSI 366898790, call sign WDB4477. EAST RIVER 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 EAST RIVER, 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
Last known position · Jun 3, 2026
Position
26.9688° N, 80.0825° W
Wherever EAST RIVER 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 EAST RIVER 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 EAST RIVER and switch it all on
Free to join · nothing to install to start · cancel anytime
About EAST RIVER
What kind of vessel is EAST RIVER?
EAST RIVER is a Industrial Vessel flagged to United States of America.
Where was EAST RIVER last seen?
EAST RIVER was last reported in around 27°N 80°W in Jun 2026 on public AIS.
What is EAST RIVER's MMSI?
EAST RIVER's MMSI is 366898790. Call sign WDB4477.
How big is EAST RIVER?
EAST RIVER is about 12 m long, 5 m on the beam, drawing 1.7 m.
Is EAST RIVER on the Master's Mate Safety Initiative Network?
Not yet. If EAST RIVER is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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