Locating official numbers from defunct ships served on?

In gathering sea service letters from various foreign vessels dating back as far as 1997 I am having trouble locating the official number (IMO, USCG) or similar for a Panamanian registered cruise ship served on in 1997. It has since been scrapped in 2005, no official records found after extensive Google searches.


How can I locate its “official number?” It’s a required field in the sea service letter I obtained from new management of the legacy company [they had records of my time aboard] but they themselves said “no idea on official number since we [the new mgmt company] did not own that particular vessel.”

Many thanks.

Found it via http://cgmix.uscg.mil/PSIX/PSIXSearch.aspx