These entries are queried from radb.net using whois, you can try my project getting these.
:AS39998 route: 12.184.171.0/24 descr: proxy-registered route origin: AS39998 mnt-by: MAINT-AS3491 changed: jray [at] pccwglobal.com 20080520 #13:00:29Z source: RADB last-modified: 2023-11-13T15:42:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.82.180.0/22 descr: proxy-registered route origin: AS39998 mnt-by: MAINT-AS3491 changed: jray [at] pccwglobal.com 20080520 #13:28:31Z source: RADB last-modified: 2023-11-13T15:42:39Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source