These entries are queried from radb.net using whois, you can try my project getting these.
:AS37452 route: 196.216.200.0/22 descr: CENTRAL BANK OF NIGERIA origin: AS37452 mnt-by: MAINT-AS37452 created: 2012-06-08T17:33:04Z last-modified: 2018-09-04T17:11:15Z source: RIPE-NONAUTH remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.200.0/22 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20161223 #08:51:22Z source: RADB last-modified: 2023-11-13T15:50:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.200.0/23 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20161223 #08:56:30Z source: RADB last-modified: 2023-11-13T15:50:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.200.0/24 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: vbpeering [at] vodacom.co.za 20170621 #14:40:15Z source: RADB last-modified: 2023-11-13T15:51:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.201.0/24 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: vbpeering [at] vodacom.co.za 20170621 #14:40:15Z source: RADB last-modified: 2023-11-13T15:51:14Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.202.0/23 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20161223 #08:55:48Z source: RADB last-modified: 2023-11-13T15:50:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.202.0/24 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20161223 #08:54:05Z source: RADB last-modified: 2023-11-13T15:50:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 196.216.203.0/24 descr: Proxy-registered route object origin: AS37452 mnt-by: MAINT-AS36994 changed: ashwin.lalla [at] vodacom.co.za 20161223 #08:54:39Z source: RADB last-modified: 2023-11-13T15:50:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source