These entries are queried from radb.net using whois, you can try my project getting these.
:AS62575 route: 192.243.80.0/20 descr: McGraw-Hill Global Education Holdings, LLC origin: AS62575 mnt-by: MAINT-AS27506 changed: aday [at] lightower.com 20170829 source: RADB last-modified: 2023-11-13T15:51:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.243.80.0/21 origin: AS62575 descr: Secaucus DC admin-c: JDT8-ARIN tech-c: WANGA38-ARIN mnt-by: MNT-MGEHL created: 2023-08-24T17:24:27Z last-modified: 2023-08-25T12:47:27Z source: ARIN rpki-ov-state: valid route: 192.243.88.0/21 origin: AS62575 descr: EWDC admin-c: JDT8-ARIN tech-c: WANGA38-ARIN mnt-by: MNT-MGEHL created: 2023-08-24T17:25:05Z last-modified: 2023-08-25T12:47:27Z source: ARIN rpki-ov-state: valid