These entries are queried from radb.net using whois, you can try my project getting these.
:AS26087 route: 152.44.0.0/16 descr: RR-RC-Gardner-Webb University-Charlotte origin: AS26087 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 152.44.88.0/21 descr: RR-RC-Gardner-Webb University-Charlotte origin: AS26087 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source