MMSI 538072106 · Call sign V7A6398
Not yet on Master's MateON AIR is a Marshall Islands sailing vessel — 14 metres overall. She has 5 metres in the beam. On AIS she appears as MMSI 538072106, call sign V7A6398. There's a place for ON AIR on the Master's Mate Safety Initiative Network — free, community-driven, like AAA for the ocean.
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 ON AIR on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.