These entries are queried from radb.net using whois, you can try my project getting these.
:AS18970 route: 199.27.24.0/24 descr: IBM origin: AS18970 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20181206 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.25.0/24 descr: IBM origin: AS18970 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20181206 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.26.0/24 descr: IBM origin: AS18970 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20181206 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.27.0/24 descr: IBM origin: AS18970 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20181206 source: RADB last-modified: 2023-11-13T15:55:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.28.0/24 descr: NPD origin: AS18970 mnt-by: MAINT-AS27506 changed: jacob.mcnallie [at] crowncastle.com 20200818 source: RADB last-modified: 2023-11-13T16:01:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.27.29.0/24 descr: NPD origin: AS18970 mnt-by: MAINT-AS27506 changed: jacob.mcnallie [at] crowncastle.com 20200818 source: RADB last-modified: 2023-11-13T16:01:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source