MMSI 205585890 · Call sign OT5858
Not yet on Master's MatePROSPERITY is a Belgian tank ship, 135 metres long. Below, she has 12 metres in the beam and a draft of 2 m. Look for MMSI 205585890, call sign OT5858. It's free to add PROSPERITY to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
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
Joining the Safety Initiative Network doesn't just put PROSPERITY on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.