MMSI 368143050 · Call sign WDL5648
Not yet on Master's MateSSG MICHAEL H. OLLIS is a ferry under American registration, 180 metres overall. She's built with 20 metres in the beam and a 4-metre draft. Officially she's MMSI 368143050, call sign WDL5648. Claim SSG MICHAEL H. OLLIS free on the Master's Mate Safety Initiative Network and let nearby cruisers have her back.
Distress alerting, live AIS, onboard monitoring and weather routing — the safety stack for boats that carry people.
Switch on the safety stack — free →Takes 60 seconds · Your data stays yours · Built by cruisers, for cruisers
Joining the Safety Initiative Network doesn't just put SSG MICHAEL H. OLLIS on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.