MMSI 366875160 · Call sign WDB2369
Not yet on Master's MateNaples Royal Princess VI, an excursion vessel flying the flag of the United States, measures 25.1 metres on deck. Naples Royal Princess VI has a beam of 6.1 m and a 1.8-metre draft. She's listed under MMSI 366875160, call sign WDB2369. Claim Naples Royal Princess VI free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put Naples Royal Princess VI on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.