MMSI 367172880 · Call sign WTP5004
Not yet on Master's MateCO HO KING, a passenger boat flying the American flag, measures 11.5 metres on deck. CO HO KING has a 3.6 m beam and a 1.9 m draft. She broadcasts as MMSI 367172880, call sign WTP5004. The Master's Mate Safety Initiative Network welcomes CO HO KING — free to join, cruiser-run, and always on watch.
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 CO HO KING on the map. It hands you the full bridge:
© 2026 Master’s Mate. All rights reserved.