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.
Tug
RIVER GIRL
MMSI 368052540 · Call sign WDN4465
Not yet on Master's MateType
Tug
Flag
USALength
17 m
Beam
8 m
Call sign
WDN4465
Official No.
611993
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
35
RIVER GIRL flies the American flag — a 17-metre tugboat. She carries a 8-metre beam. Officially she's MMSI 368052540, call sign WDN4465. Give RIVER GIRL 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 RIVER GIRL.
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
Last known position · Jun 3, 2026
Position
34.8062° N, 76.6797° W
Working off the U.S. East Coast? 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 RIVER GIRL 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 RIVER GIRL and switch it all on
Free to join · nothing to install to start · cancel anytime
About RIVER GIRL
What kind of vessel is RIVER GIRL?
RIVER GIRL is a Tug flagged to United States of America.
Where was RIVER GIRL last seen?
RIVER GIRL was last reported in off the U.S. East Coast in Jun 2026 on public AIS.
What is RIVER GIRL's MMSI?
RIVER GIRL's MMSI is 368052540. Call sign WDN4465.
How big is RIVER GIRL?
RIVER GIRL is about 17 m long, 8 m on the beam.
Is RIVER GIRL on the Master's Mate Safety Initiative Network?
Not yet. If RIVER GIRL is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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