These entries are queried from radb.net using whois, you can try my project getting these.
:AS13829 route: 159.233.0.0/16 origin: AS13829 descr: PHX remarks: Proxy object for AS13829 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: 159.233.140.0/24 origin: AS13829 descr: PHX remarks: Proxy object for AS13829 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: 159.233.184.0/24 origin: AS13829 descr: PHX remarks: Proxy object for AS13829 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