These entries are queried from radb.net using whois, you can try my project getting these.
:AS31980 route: 66.246.180.0/23 descr: Corsis Technology Services origin: AS31980 mnt-by: MAINT-CORSIS changed: sjs [at] nac.net 20040930 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.207.221.0/24 descr: The Baupost Group, LLC origin: AS31980 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190214 #19:39:41Z source: RADB last-modified: 2023-11-13T15:55:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.123.35.0/24 descr: Corsis Technology Services origin: AS31980 mnt-by: MAINT-CORSIS changed: sjs [at] nac.net 20040930 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source