MMSI 230044260 · Call sign OH2167
Not yet on Master's MateKALLE is a tug flying the Finnish flag, spanning 15 metres. Below, she has 5 metres in the beam and a draft measuring 2 metres. Officially she's MMSI 230044260, call sign OH2167. Join KALLE to the Master's Mate Safety Initiative Network — free, and built by cruisers for cruisers.
Engine & systems telemetry, live AIS, weather and distress alerting for the vessels that earn their keep.
Rig her out — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put KALLE on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.