These entries are queried from radb.net using whois, you can try my project getting these.
:AS397749 route: 198.2.4.0/22 origin: AS397749 descr: McLaren Health Care admin-c: NETWO9480-ARIN tech-c: NETWO9480-ARIN mnt-by: MNT-MCGH-1 created: 2023-09-12T20:11:08Z last-modified: 2023-09-12T20:11:08Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.2.8.0/24 origin: AS397749 descr: McLaren Health Care admin-c: NETWO9480-ARIN tech-c: NETWO9480-ARIN mnt-by: MNT-MCGH-1 created: 2021-11-04T13:10:25Z last-modified: 2021-11-04T13:10:25Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.2.14.0/23 origin: AS397749 descr: McLaren Health Care admin-c: NETWO9480-ARIN tech-c: NETWO9480-ARIN mnt-by: MNT-MCGH-1 created: 2023-09-12T20:06:37Z last-modified: 2023-09-12T20:06:37Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source