These entries are queried from radb.net using whois, you can try my project getting these.
:AS19874 route: 65.114.161.0/24 descr: Custom Direct origin: AS19874 mnt-by: CTI-MNT changed: ccs_ip-admin [at] cable.comcast.com 20070426 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.153.21.0/24 origin: AS19874 descr: PHX remarks: Proxy object for AS19874 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: 104.153.23.0/24 origin: AS19874 descr: PHX remarks: Proxy object for AS19874 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