These entries are queried from radb.net using whois, you can try my project getting these.
:AS393951 route: 172.87.76.0/22 origin: AS393951 descr: Hortons TV admin-c: HORTO48-ARIN tech-c: HORTO48-ARIN mnt-by: MNT-HTE-15 created: 2021-04-08T17:43:12Z last-modified: 2021-04-08T17:43:12Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 172.87.76.0/22 descr: Proxy fbo Hortons TV origin: AS393951 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Michael.Addy [at] windstream.com 20151110 source: RADB last-modified: 2023-11-13T15:48:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.249.180.0/22 descr: Proxy fbo Hortons TV origin: AS393951 remarks: Windstream Footprint remarks: IPENG-14531 mnt-by: MAINT-AS7029 changed: Jeffry.Chambers [at] windstream.com 20211104 source: RADB last-modified: 2023-11-13T16:08:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.46.104.0/21 descr: Proxy fbo Hortons TV origin: AS393951 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Michael.Addy [at] windstream.com 20160125 source: RADB last-modified: 2023-11-13T15:48:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.46.108.0/22 origin: AS393951 descr: Hortons TV admin-c: HORTO48-ARIN tech-c: HORTO48-ARIN mnt-by: MNT-HTE-15 created: 2021-04-08T17:44:42Z last-modified: 2021-04-08T17:44:42Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source