These entries are queried from radb.net using whois, you can try my project getting these.
:AS394258 route: 204.108.148.0/24 origin: AS394258 mnt-by: MNT-CHS1 descr: Chesconet IPv4 block re-assigned to West Chester Area School District tech-c: LKO36-ARIN tech-c: TCU10-ARIN admin-c: TCU10-ARIN source: ARIN created: 2020-07-16T17:43:19Z last-modified: 2020-07-16T17:43:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.108.148.0/24 descr: Zito Networks origin: AS394258 mnt-by: MAINT-AS26801 changed: skyler.blumer [at] zitomedia.com 20220925 source: RADB last-modified: 2023-11-13T16:12:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source