These entries are queried from radb.net using whois, you can try my project getting these.
:AS10490 route6: 2607:f7b8::/32 descr: SouthernLightRail origin: AS10490 mnt-by: MAINT-AS2637 changed: scott.friedrich [at] oit.gatech.edu 20150112 #13:49:27Z source: RADB last-modified: 2023-11-13T15:47:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source