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.
Towing Vessel
YBOR CITY
MMSI 367004750 · Call sign WDI4909
Not yet on Master's MateType
Towing Vessel
Flag
USALength
21.5 m
Beam
7.4 m
Draft
3.5 m
Call sign
WDI4909
IMO
7642106
Official No.
504524
AIS reports
2
YBOR CITY is an American workboat — 21.5 metres overall. She carries a 7.4-metre beam and a 3.5 m draft. On the registers she's MMSI 367004750, call sign WDI4909, IMO 7642106. Give YBOR CITY 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 YBOR CITY.
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
Wherever YBOR CITY 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 working boats
The most powerful cruising platform ever built — yours, free.
Joining the Safety Initiative Network doesn't just put YBOR CITY 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 YBOR CITY and switch it all on
Free to join · nothing to install to start · cancel anytime
About YBOR CITY
What kind of vessel is YBOR CITY?
YBOR CITY is a Towing Vessel flagged to United States of America.
What is YBOR CITY's MMSI?
YBOR CITY's MMSI is 367004750. Call sign WDI4909. IMO 7642106.
How big is YBOR CITY?
YBOR CITY is about 21.5 m long, 7.4 m on the beam, drawing 3.5 m.
Is YBOR CITY on the Master's Mate Safety Initiative Network?
Not yet. If YBOR CITY is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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