These entries are queried from radb.net using whois, you can try my project getting these.
:AS264842 route: 170.81.252.0/22 descr: IP-DATA origin: AS264842 mnt-by: MAINT-AS23520 changed: wfajardo [at] columbus-networks.com 20180216 #16:03:52Z source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.81.252.0/24 origin: AS264842 descr: ITX-MC changed: noc [at] internexa.com 20181218 #14:37:24Z source: RADB mnt-by: MAINT-AS18678 last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.81.253.0/24 origin: AS264842 descr: ITX-MC changed: noc [at] internexa.com 20181218 #14:38:03Z source: RADB mnt-by: MAINT-AS18678 last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.81.254.0/24 origin: AS264842 descr: ITX-MC changed: noc [at] internexa.com 20181218 #14:38:39Z source: RADB mnt-by: MAINT-AS18678 last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.81.255.0/24 origin: AS264842 descr: ITX-MC changed: noc [at] internexa.com 20181218 #14:39:14Z source: RADB mnt-by: MAINT-AS18678 last-modified: 2023-11-13T15:55:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2803:e2c0::/32 descr: IP DATA LTDA origin: AS264842 mnt-by: MAINT-AS23520 changed: wfajardo [at] columbus-networks.com 20161227 #15:50:51Z source: RADB last-modified: 2023-11-13T15:55:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source