These entries are queried from radb.net using whois, you can try my project getting these.
:AS203469 route: 46.254.152.0/22 origin: AS203469 mnt-by: it_umbriadigitale_zazzaro mnt-by: it-umbriadigitale-1-mnt created: 2023-08-03T06:53:33Z last-modified: 2023-08-03T06:53:33Z source: RIPE 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: 46.254.152.0/23 origin: AS203469 mnt-by: it_umbriadigitale_zazzaro mnt-by: it-umbriadigitale-1-mnt created: 2023-08-03T06:55:59Z last-modified: 2023-08-03T06:55:59Z source: RIPE 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: 46.254.154.0/23 origin: AS203469 mnt-by: it_umbriadigitale_zazzaro mnt-by: it-umbriadigitale-1-mnt created: 2023-08-03T06:56:20Z last-modified: 2023-08-03T06:56:20Z source: RIPE 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: 185.110.116.0/22 origin: AS203469 mnt-by: it-umbriadigitale-1-mnt created: 2016-10-04T14:16:18Z last-modified: 2016-10-04T14:16:18Z source: RIPE 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: 185.110.116.0/23 origin: AS203469 mnt-by: it-umbriadigitale-1-mnt created: 2020-10-23T14:24:58Z last-modified: 2020-10-23T14:24:58Z source: RIPE 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: 185.110.118.0/23 origin: AS203469 mnt-by: it-umbriadigitale-1-mnt created: 2020-10-23T14:26:18Z last-modified: 2020-10-23T14:26:18Z source: RIPE 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