I have a collection of tail numbers of US aircraft which flew a bunch of domestic flights in the 2000's, but some of them seem to end with
@@@, which are obviously not a valid tail number characters. My question is - are these prefixes of tail numbers with the last character/digit removed? Or are these valid tail numbers if we just drop the
Now, I could go look up these numbers in the registry. But - that would look up current data, while I need data from 2001 and 2002. Today, some of these numbers (when dropping the
@'s) are registered to private individuals, some to non-airline companies, and some aren't registered at all.
Note: The carriers owning these specific numbers in the list above were Southwest Airlines and Delta Airlines.