MMSI 257501900 · Call sign LK6457
Not yet on Master's MateHATTBOEN is a cargo carrier listed on the Norway registry, 11 metres from stem to stern. She's built with a 6-metre beam and a 1-metre draft. She's on record as MMSI 257501900, call sign LK6457. Add HATTBOEN to the Master's Mate Safety Initiative Network and share the water with a fleet that's paying attention — free.
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 HATTBOEN on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.