MMSI 258394000 · Call sign LDYY
Not yet on Master's MateSEIVIK is a Norwegian tug, spanning 20 metres. Her hull carries a 9-metre beam and a draft measuring 2.3 metres. On AIS she shows as MMSI 258394000, call sign LDYY, IMO 9616577. SEIVIK is invited to the free Master's Mate Safety Initiative Network, where cruisers keep each other safe.
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 SEIVIK on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.