MMSI 256897000 · Call sign 9HFB9
Not yet on Master's MateRIVER HARMONY is a Maltese 110-metre boat. She's built with 12 metres in the beam and a 1.5-metre draft. On AIS she shows as MMSI 256897000, call sign 9HFB9. Claim RIVER HARMONY free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Your free claim unlocks the most powerful cruising platform ever built — anchor watch, worldwide charts, live AIS, weather routing, and a network of cruisers watching each other’s backs.
Claim this boat — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put RIVER HARMONY on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.