MMSI 368266610 · Call sign WDN2918
Not yet on Master's MateJIOIA, an American cruising boat, measures 15 metres on deck. JIOIA has a beam measuring 5 metres and a 3.2 m draft. She's listed under MMSI 368266610, call sign WDN2918. It's free to add JIOIA to the Master's Mate Safety Initiative Network — like AAA for the ocean, run by the cruisers who use it.
GPS-precise anchor-drag alarms, ETA-calibrated weather routing, worldwide charts, and cruisers watching each other’s backs.
Set her anchor watch — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put JIOIA on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.