These entries are queried from radb.net using whois, you can try my project getting these.
:AS399455 route: 172.82.52.0/22 origin: AS399455 descr: IP Routing LLC mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20210526 #20:02:21Z source: RADB last-modified: 2023-11-13T16:05:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fca8::/36 origin: AS399455 descr: IP Routing LLC via Montana Sky Networks notify: networkengineers [at] blackfoot.com mnt-by: MAINT-AS21947 changed: networkengineers [at] blackfoot.com 20231107 #15:59:33Z source: RADB last-modified: 2023-11-13T16:19:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source