These entries are queried from radb.net using whois, you can try my project getting these.
:AS19329 route: 198.136.32.0/21 descr: NETBLK-MCNET origin: AS19329 mnt-by: MAINT-NTTCOM-RA changed: boudreat [at] eng.verio.net 20070413 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.136.32.0/21 descr: PNAP-MIA itstelecom-routes origin: AS19329 mnt-by: MAINT-AS1828 changed: hkhidir [at] internap.com 20130704 source: RADB last-modified: 2023-11-13T16:14:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.136.40.0/23 descr: NETBLK-MCNET origin: AS19329 mnt-by: MAINT-NTTCOM-RA changed: boudreat [at] eng.verio.net 20070413 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.136.40.0/23 descr: PNAP-MIA itstelecom-routes origin: AS19329 mnt-by: MAINT-AS1828 changed: hkhidir [at] internap.com 20130704 source: RADB last-modified: 2023-11-13T16:14:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source