These entries are queried from radb.net using whois, you can try my project getting these.
:AS53432 route: 12.108.88.0/24 descr: RR-RC-MHCS-Columbus origin: AS53432 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 12.139.109.0/24 descr: Proxy fbo Owensboro Health, Inc. (AS53432) origin: AS53432 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20180926 source: RADB last-modified: 2023-11-13T15:54:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source