MMSI 218008130 · Call sign DMGU
Not yet on Master's MateGROSSNORDSEE flies the German flag — a 35-metre tugboat. She's built with 11 metres in the beam and a 4.6 m draft. On the registers she's MMSI 218008130, call sign DMGU, IMO 9067271. Add GROSSNORDSEE to the Master's Mate Safety Initiative Network — free to join, and the fleet keeps an eye out for each other.
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 GROSSNORDSEE on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.