These entries are queried from radb.net using whois, you can try my project getting these.
:AS396499 route: 161.159.0.0/16 origin: AS396499 descr: Corebridge Financial, Inc admin-c: COREB-ARIN tech-c: COREB-ARIN mnt-by: MNT-CF-1689 created: 2023-02-28T21:53:46Z last-modified: 2023-04-12T15:50:53Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.27.0/24 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.30.0/24 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.31.0/24 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.40.0/22 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.44.0/22 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.53.0/24 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.56.0/22 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.159.60.0/22 descr: proxy object for customer to build route filter origin: AS396499 mnt-by: MAINT-AS8220 changed: mark.borchardt [at] colt.net 20231107 source: RADB last-modified: 2023-11-13T16:19:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source