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 Ship
California
MMSI 338500000 · Call sign KEBO
Not yet on Master's MateType
Tank Ship
Flag
USALength
251 m
Beam
43.8 m
Draft
21 m
Call sign
KEBO
IMO
9642095
Official No.
1077129
AIS reports
4
On the American registry, California is a 251-metre tank vessel. Her hull carries a beam of 43.8 m and a draft of 21 m. On the registers she's MMSI 338500000, call sign KEBO, IMO 9642095. The Master's Mate Safety Initiative Network welcomes California — free to join, cruiser-run, and always on watch.
Free forever · No credit card · for commercial operators
Eyes on California, 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 California 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 California 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 California and switch it all on
Free to join · nothing to install to start · cancel anytime
About California
What kind of vessel is California?
California is a Tank Ship flagged to United States of America.
What is California's MMSI?
California's MMSI is 338500000. Call sign KEBO. IMO 9642095.
How big is California?
California is about 251 m long, 43.8 m on the beam, drawing 21 m.
Is California on the Master's Mate Safety Initiative Network?
Not yet. If California is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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