These entries are queried from radb.net using whois, you can try my project getting these.
:AS54471 route: 216.105.192.0/20 descr: Androscoggin Valley Hospital descr: 59 Page Hill Road descr: Berlin, NH 03570 descr: US origin: AS54471 mnt-by: MNT-AVH-11 changed: hostmaster [at] avhnh.org 20120301 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.105.192.0/20 descr: RR-BC-Androscoggin Valley Hospital-Portland origin: AS54471 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.105.192.0/21 descr: Androscoggin Valley Hospital descr: 59 Page Hill Road descr: Berlin, NH 03570 descr: US origin: AS54471 mnt-by: MNT-AVH-11 changed: hostmaster [at] avhnh.org 20120402 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.105.192.0/21 descr: RR-BC-Androscoggin Valley Hospital-Portland origin: AS54471 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.105.200.0/21 descr: Androscoggin Valley Hospital descr: 59 Page Hill Road descr: Berlin, NH 03570 descr: US origin: AS54471 mnt-by: MNT-AVH-11 changed: hostmaster [at] avhnh.org 20120402 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.105.200.0/21 descr: RR-BC-Androscoggin Valley Hospital-Portland origin: AS54471 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source