Interestingly, TOS "Court Martial" already featured registries this high.
I guess you mean the second number from the top, which is supposed to read "1831"? I´m not so sure about that. If you look at the screencap
there are two definite 8s: the third from the bottom reads "1718
" and the one below is "168
5". If you compare these 8s (which clearly differ from the 6s) to the number in question, it doesn´t look like "1831" but rather "1631". So I´d say all the numbers on the list are either 16XX or 17XX.