These entries are queried from radb.net using whois, you can try my project getting these.
:AS19403 route: 8.10.180.0/22 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: bgpadmin [at] techalliancegroup.com 20051212 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.18.240.0/20 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: bgpadmin [at] techalliancegroup.com 20060329 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.127.200.0/21 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: bgpadmin [at] techalliancegroup.com 20060623 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.157.200.0/22 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: bgpadmin [at] techalliancegroup.com 20051212 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.157.204.0/22 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: carl.pluim [at] level3.com 20010710 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.127.200.0/21 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: bgpadmin [at] techalliancegroup.com 20060626 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.167.204.0/22 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: carl.pluim [at] level3.com 20010710 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.210.10.0/24 origin: AS19403 descr: WICH remarks: Proxy object for AS19403 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: valid route: 199.102.254.0/24 origin: AS19403 descr: WICH remarks: Proxy object for AS19403 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.102.255.0/24 origin: AS19403 descr: WICH remarks: CENTRAL mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20221109 source: RADB last-modified: 2023-11-13T16:13:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.35.199.0/24 descr: route for TAG origin: AS19403 mnt-by: TAG-MNT changed: carl.pluim [at] level3.com 20010710 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source