These entries are queried from radb.net using whois, you can try my project getting these.
:AS13433 route: 66.6.144.0/20 descr: Cox Enterprises, Inc. 6205 PeachTree Dunwoody Road Atlanta, GA 30328 origin: AS13433 mnt-by: MNT-COXENT changed: john.blank [at] coxinc.com 20040227 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.6.144.0/21 origin: AS13433 descr: DUKE #ECR000001350769 remarks: Proxy object for AS13433 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: 66.6.144.0/22 descr: Cox Enterprises, Inc. 6205 PeachTree Dunwoody Road Atlanta, GA 30328 origin: AS13433 mnt-by: MNT-COXENT changed: john.blank [at] coxinc.com 20040227 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.6.152.0/22 origin: AS13433 descr: DUKE #ECR000001350769 remarks: Proxy object for AS13433 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: 66.6.156.0/22 origin: AS13433 descr: CHND #ECR000001350769 remarks: Proxy object for AS13433 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: 67.97.216.0/21 origin: AS13433 descr: DUKE remarks: Proxy object for AS13433 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: 169.137.0.0/17 origin: AS13433 descr: DUKE remarks: Proxy object for AS13433 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: 169.137.128.0/17 origin: AS13433 descr: DUKE remarks: Proxy object for AS13433 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: 169.137.212.0/22 origin: AS13433 descr: PHX remarks: Proxy object for AS13433 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 route6: 2607:fc40::/32 origin: AS13433 descr: DUKE remarks: Proxy object for AS13433 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source