These entries are queried from radb.net using whois, you can try my project getting these.
:AS33642 route: 8.19.100.0/22 descr: BandCon (for CPC Tech) origin: AS33642 mnt-by: CPCTECH-MNT changed: ipadmin [at] lumen.com 20210713 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.11.96.0/21 descr: PNAP-DAL colo4dallas origin: AS33642 mnt-by: MAINT-AS1828 changed: rkosa [at] internap.com 20081119 source: RADB last-modified: 2023-11-13T16:14:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.11.96.0/22 descr: PNAP-DAL origin: AS33642 mnt-by: MAINT-AS1828 changed: btolbert [at] internap.com 20090427 source: RADB last-modified: 2023-11-13T16:14:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.75.0.0/22 descr: BandCon (for CPC Tech) origin: AS33642 mnt-by: CPCTECH-MNT changed: ipadmin [at] lumen.com 20210713 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.75.0.0/24 origin: AS33642 descr: CHND #ECR000001350769 remarks: Proxy object for AS33642 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.75.1.0/24 origin: AS33642 descr: CHND #ECR000001350769 remarks: Proxy object for AS33642 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.75.2.0/24 origin: AS33642 descr: CHND #ECR000001350769 remarks: Proxy object for AS33642 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220520 source: RADB last-modified: 2023-11-13T16:11:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source