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
IOT 403
U.S. Official No. 529149
Not yet on Master's MateType
Tank Barge
Flag
USALength
91.4 m
Beam
16.5 m
Draft
3 m
First reported
Jun 2026
AIS reports
1
IOT 403 is a tank ship sailing under the American flag, 91.4 metres from stem to stern. She carries a 16.5-metre beam and a 3-metre draft. She's on record as U.S. official number 529149. Put IOT 403 on the Master's Mate Safety Initiative Network — free to claim, with a whole fleet watching out for her.
Free forever · No credit card · for commercial operators
Eyes on IOT 403, 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 IOT 403 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 IOT 403 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 IOT 403 and switch it all on
Free to join · nothing to install to start · cancel anytime
About IOT 403
What kind of vessel is IOT 403?
IOT 403 is a Tank Barge flagged to United States of America.
What is IOT 403's U.S. Official No.?
IOT 403's U.S. Official No. is 529149.
How big is IOT 403?
IOT 403 is about 91.4 m long, 16.5 m on the beam, drawing 3 m.
Is IOT 403 on the Master's Mate Safety Initiative Network?
Not yet. If IOT 403 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
© 2026 Master’s Mate. All rights reserved.