MMSI 244700539 · Call sign PG8769
Not yet on Master's MateOn the Dutch registry, SPES is a 15-metre working tug. She's built with a beam of 4 m and a 0.2-metre draft. On AIS she appears as MMSI 244700539, call sign PG8769. The Master's Mate Safety Initiative Network welcomes SPES — free to join, cruiser-run, and always on watch.
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 SPES on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.