These entries are queried from radb.net using whois, you can try my project getting these.
:AS54803 route: 192.73.13.0/24 origin: AS54803 descr: Proxy registered on behalf of Father Flanagans Boys Home. FATHER-FLANAGANS-192-73-13-0 mnt-by: MAINT-AS13807 changed: jclingan [at] gpcom.com 20200318 #18:46:43Z source: RADB last-modified: 2023-11-13T16:00:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.142.0/24 origin: AS54803 descr: MTC1 remarks: Proxy object for AS54803 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: 198.97.64.0/24 origin: AS54803 descr: MTC1 remarks: Proxy object for AS54803 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